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Notes on Annual Plant Descriptions
Element data addressing 50 kinds of annuals and easy methods to use them in your backyard. Do you know some annuals are hardier than others? Our notes for every plant states the distinction from hardy annual to hardy hardy annual.
H.A. Signifies that the plant is greatest raised as a hardy annual by seed sown within the open floor within the spring, or in some cases within the fall. That is acknowledged the place relevant. Such hardy annuals will stand up to a standard winter within the open floor and can present an earlier show than spring-sown seed.
H.H.A. Denotes a half-hardy annual which is a plant that’s liable to wreck by spring frost or perhaps withered by perishing winds within the younger stage. Such crops are raised from seed sown underneath glass in a temperature of about 6o°F (15°C), both in a greenhouse or in an electrically heated propagating body.
H.B. Signifies a hardy biennial that takes two years to flower from seed after which dies. The seed is often sown within the open floor within the early summer time, the seedlings later being transplanted in rows to develop on, earlier than being moved to their flowering positions within the fall or early spring.
H.H.P. This refers to a half-hardy perennial plant which can stay for plenty of years however requires the safety of a frost-free greenhouse through the winter. Such crops are sometimes used for summer time bedding shows; typically exceptionally good crops are elevated by cuttings.
Annual Flowers
Adonis H.A., 1 – 1 ½ ft. Simply grown from seed sown within the spring in a sunny place, A. aestivalis bears small crimson flowers in June and July. The deep inexperienced, finely-cut leaves are additionally engaging.
Ageratum H.H.A., 6-18 in. It is a standard bedding plant with lots of fluffy little powder-puff-like flowers from July till fall frosts. The long-lasting flowers are primarily in shades of blue and retain their shade with out fading. Sow underneath glass in February or March and plant out in a sunny mattress, window-box or one other container in direction of the tip of Could. Dwarf varieties additionally make neat crops when grown in pots to flower in a cool greenhouse. Appropriate varieties are ‘Blue Mink’, 6 in., powder blue; ‘Blue Coloration’, 6 in., mid-blue, early flowering; ‘Fairy Pink’, 6 in., pale pink. There are additionally white varieties. A. mexicanum has mushy lavender-blue flowers on 18 in. stems.
Agrostemma (corn cockle) H.A., 1 ½-2 ft. Magenta-red single flowers are borne on slender stems freely all through the summer time. A extra ornamental selection Milas’ has massive rosy-lilac flowers with conspicuous darkish strains alongside every petal. The lengthy, stiff stems make it helpful as a reduce flower in addition to for the border. Seed could also be sown within the open floor within the fall or within the spring for later flowering.
Alonsoa (masks flower) H.H.A., 1-1 ½ ft. These South American crops thrive in wealthy soil and in a sunny place. The showiest is A. warscewiczii, with shiny scarlet flowers. There may be additionally a dwarf type often called compacta’, admirable as a pot plant for a cool greenhouse, the place it’s perennial. Sow in February or March underneath glass, at a temperature of 6o°F ( 6°C), and plant out in Could for a summer time show.
Althaea (hollyhock) H.B., 4-5 ft. Simply raised from seed, the hollyhock could show perennial however shouldn’t be long-lived. Sow the seed within the open floor in Could or June and transplant the seedlings to develop on, earlier than placing them of their flowering websites within the fall or
early spring to flower in July and August. There are single and double varieties in shades of crimson, pink, yellow, and white. There may be additionally an annual type that needs to be sown outdoors in April to flower from July onwards.
Alyssum (candy alyssum) H.A., 4 in. A preferred plant for edging, A. maritimum grows nicely in paving and window bins. It flowers freely all through the summer time and early fall and is well raised from seed sown the place it’s to flower. Or seed could also be sown underneath glass and the seedlings planted out about mid-Could when the hazard of frost needs to be handed. The little heads of the flower are sweetly aromatic. Beneficial varieties embrace ‘Carpet of Snow’, white flowers; `Rosie 0′ Day’, deep rose-pink; ‘Royal Carpet’, violet-purple; ‘Violet Queen’, shiny violet-purple.
Amaranthus (love-lies-bleeding) H.A., 3 ft. The lengthy pendent tassels of crimson flowers are a curious sight from July to September. A. caudatus Viridis’ has lengthy greenish-yellow tassels. Sow within the open floor in April in well-drained soil and in a sunny place. It requires loads of moisture through the rising season. In uncovered districts it’s best handled as a half-hardy plant. Folks both prefer it or it offers them the creeps.
Anagallis (pimpernel) H.H.A., 6-12 in. Seed of A. linifolia sown within the open in late Could in well-drained soil on a rock backyard or heat border will present brilliantly coloured flowers from July to September. Combined packets will present shades of scarlet and blue, or separate colours can be found.
Antirrhinum (snapdragon) H.H.A., 9 in.-3 ft. These long-flowering crops are often handled as annuals though in delicate districts they’re short-lived perennials. For bedding functions, the seed is sown in flats or pots in a heat greenhouse in February or March. Sturdy crops needs to be prepared for planting out in a sunny mattress by mid-Could. Seed could also be sown within the open floor in April or Could for flowering in late summer time, however these can’t be in contrast with crops raised underneath glass. The vary of shade consists of crimson, pink, orange-scarlet, yellow and white, and plenty of delicate variations. The dwarf varieties are admirable for the entrance of a border or for window bins and the taller varieties are helpful for reduce flowers. There may be additionally a wide selection of rust-resistant hybrids, that are suggested the place this illness is prevalent.
Arctotis H.H.A., 1-2 ft. These South African crops with daisy-like flowers require well-drained soil and full solar. They’re perennial of their native situations however are simply raised from seed sown underneath glass in March at a temperature of 65°F (I 8°C). Harden off the seedlings earlier than planting out in mid-Could. The silvery-white flowers of A. grandis, 2 ft., have a mauve middle and a golden band. Younger crops needs to be pinched again when about 6 in. excessive to encourage bushy development.
Asperula (woodruff) H.A., 1 ½ ft. A helpful little plant for edging or for filling a spot on the entrance of a border. A local of Syria, A. orientalis is an simply grown plant producing aromatic, lavender-blue flowers from July onwards. It’s of branching behavior and is helpful for miniature floral preparations. It enjoys a moist soil and partial shade and needs to be sown in Could the place it’s to flower.
Bellis (double English daisy) Repair., 6 in. Bellis perennis Monstrosa Flore Pleno’ is a hardy perennial however is often raised from seed sown within the open floor in early summer time and transplanted to flowering positions within the fall. In colder areas, crops needs to be planted in protected chilly frames within the fall and transferred to the open floor in spring. The button-like flowers are in shades of crimson to rose and white and are efficient amongst different spring bedding crops and tulips.
Brachycome (Swan River daisy) H.H.A., 9-12 in. In sheltered gardens B. iberidifolia a little bit Australian plant could also be handled as a hardy annual, however it’s often sown underneath glass in March and planted out in Could. Simply grown in a dry, sunny place, it flowers all through the summer time till the autumn frosts. The star-like flowers are blue or white with a darkish disk. As a pot plant it can flower for weeks in a cool greenhouse.
Calandrinia (rock purslane) H.H.A., 6 in. C. umbellata is a sun-loving plant from Peru which thrives on a rock backyard ledge or on the highest of a drywall. The sensible magenta-crimson flowers are borne in clusters from July to September however don’t open in uninteresting climate. Sow the seed in April and Could and skinny the seedlings to six in. aside.
Calceolaria H.H.A., 1- 1 ½ ft. The dust-like seed of the pale yellow C. scabiosaefolia is sown underneath glass in early spring and after hardening off the younger crops are put out when the hazard of frost is over. In a sunny place or within the dappled shade they flower from July to September.
Calendula (pot or backyard marigold) H.A., 1 ½-2 ft. These showy crops derived from C. officinalis are among the many hardiest and best to develop in virtually any soil and in full solar. They flower constantly all through the summer time and the autumn. Significantly in mild soil, they seed themselves fortunately however fashionable varieties are inclined to deteriorate shortly when grown on this means. Sow in spring or the autumn in milder areas the place they’re to flower. Younger seedlings could also be transplanted with success. There are quite a few named varieties, a lot of American origin (F1 hybrids), the place they’re often called the friendship flower. To get the most effective outcomes to buy recent seed every year. Good varieties embrace: ‘First Girl’, shiny yellow, compact; ‘Flame Magnificence’, deep orange; ‘Golden Magnificence’, gold; ‘Lemon Magnificence’, lemon-yellow; `Radio’, shiny orange, ball-shaped flowers with quilled petals.
Callistephus (China aster) H.H.A., 1-2½ ft. The various and colourful fashionable asters have been developed from C. chinenis however some seedsmen discover they’re higher often called asters -not to be confused with the perennial Michaelmas daisies. Seed needs to be sown in a cool greenhouse in March or April, or in hotter areas within the open floor in early Could. There are each double and single flowers and the colour vary is all-embracing. Seedlings transplant fairly readily when small. Grown en masse they make a splendid present in late summer time and early fall. The short-growing varieties make bushy, ornamental crops in window bins. ‘Ostrich Plume’, and ‘Princess’, each 2 ft., are admirable for chopping.
Campanula (Canterbury bell) H.B., 2½-3 ft. An previous favourite amongst gardeners, C. medium in shades of deep blue, lavender, deep pink and white is admirable in a blended border in good soil and a sunny place. The cup and saucer varieties with massive bell-like flowers and a saucer, or calyx, of the identical shade, are among the many hottest. Sow the seed within the open in Could or June, overlaying it very calmly with tremendous soil, and plant out within the flowering place in early fall. They may flower the next June to August. The place winters are extreme the crops needs to be transferred to frost-proof frames till the spring.
Celosia (cockscomb) H.H.A., 2 ft. The feathered types of C. argentea cristata bear sensible pyramidal plumes from July to September. The colours embrace shades of crimson, scarlet, orange, and yellow and are seen to greatest impact with inexperienced foliage crops. Sow seed in a heat greenhouse in March, pot the seedlings individually, and plant out within the open when the hazard of frost is previous. They thrive in well-drained, mild soil, and in full solar. Seeds can also be sown outdoors in spring the place the crops are to flower. In addition they make ornamental pot crops in a greenhouse for summer time show.
Centaurea (cornflower, candy sultan) H.A., 1-3 ft. The brilliant blue flowers of the cornflower, C. cyanus, are borne on tall stems and there are additionally pale blue, lilac, pink and white varieties, in addition to dwarf varieties not exceeding i ft. in top. All are simply raised from seed sown from March to Could, or in September in hotter areas, in a sunny place and in moderately well-drained soil. The taller varieties are wonderful for chopping. C. moschata (the candy sultan) H.A., r z ft. is one other standard annual with aromatic, fluffy heads of flower bigger than these of cornflower, pale lilac in shade. There are large varieties in shades of mauve, purple, rose, yellow and white. The flowers are most helpful for chopping and can final many days in water if reduce younger. Sow as for cornflower. Each do nicely on soil containing lime.
Cheiranthus (wallflower) H.B., 15 in. C. x allionii, is the Siberian wallflower with shiny orange flowers in April and Could. ‘Golden Bedder’ is a extra mellow golden-yellow selection. The frequent wallflower, C. cheiri, II- ft. is perennial in milder components of the nation, however each these wallflowers are greatest handled as a biennial and sown in an open seed mattress in Could, or mid-June for the Siberian wallflower, and transplanted to flowering positions in October. Vegetation needs to be over-wintered in frost-proof frames the place the winters are colder. The perfume of wallflowers on a heat sunny day is wonderful and so they affiliate fortunately with tulips, forget-me-nots and polyanthus. The vary of shade is splendid-blood crimson, scarlet, purple, pink, yellow, ivory white.
Chrysanthemum H.A., 1-3 ft. C. carinatum (tricolor chrysanthemum), 1 ½-2 ft. C. coronarium (crown daisy) 2-3 ft. C. segetum (corn chrysanthemum) 1 ½ ft. There are a lot of sorts of annual chrysanthemums, single and double. All have daisy-like flowers on good stems and sometimes have rings or zones of shade on white or cream petals. Among the many greatest hardy annuals for summer time flowering, they make wonderful reduce flowers. Seed needs to be sown in April within the open in a sunny place the place they’re to flower or in September for an early show the subsequent 12 months in milder areas. They don’t transplant readily, so it’s a waste of time to plant out thinnings. They don’t seem to be fussy about soil supplied it isn’t excessively moist.
Clarkia H.A. 2 ft. Double-flowered C. el egans hybrids are deservedly standard; their slender spikes bear quite a few flower heads in shades of salmon-pink, carmine, rosy-purple and white. They’re additionally most ornamental as reduce flowers. Sow within the open the place they’re to flower in March and April, or, in milder components of the nation in September to flower the next Could and June. Clarkia does greatest in a lightweight soil and won’t tolerate heavy, moist soil. It’s clever to help younger crops with mild twigs as they’re liable to be damaged off at floor degree in a summer time gale. For a spring show in a chilly greenhouse sow the seed underneath glass within the fall.
Cleome (spider flower) H.H.A., 3-4 ft. The massive, ethereal flower trusses are a pretty pinky-mauve and borne erect on inflexible, thorny stems from July to September. The crops are simplest when grown in daring clumps within the border. Sow the seed in March in a heat greenhouse and plant out in Could in wealthy, well-drained soil. They can be sown straight outdoors the place they’re to flower. These fast-growing crops require ample moisture. ‘Pink Queen’ is a pretty apple-blossom pink; there’s additionally a pure white selection.
Cobaea (cup and saucer plant) H.H.A., 10-20 ft. A vigorous Mexican twiner C. scandens bears massive Canterbury bell-like flowers from July onwards on a heat wall. The flowers open inexperienced, turning into violet-purple. In a cool greenhouse it’s perennial however requires ample area to unfold. There may be additionally a white selection. Soak the big seeds in water for a couple of hours earlier than sowing and place them on their sides within the soil, not flat. Sow underneath glass in March and pot on, planting out in early June. The place the climate is hotter seeds could also be sown straight outdoors.
Coleus H.H.P., 3 ft. These are decorative foliage crops with engaging leaves in shades of inexperienced, copper, crimson and apricot, making them conspicuous for greenhouse or room ornament. They might even be planted outdoor in a sunny border as summer time bedding crops. Sow seed of C. blumei or named hybrids in February underneath glass in a temperature of 75°F (24°C) and develop on with out a verify to acquire sturdy, showy crops. Significantly putting varieties could also be perpetuated by taking cuttings, 3 in. lengthy, of nonflowering shoots in August or March.
Collinsia H.A., 1 ft. The Pagoda collinsia is a pretty plant with white higher lip and lilac decrease lip, ‘Salmon Magnificence’ is a free-flowering delicate salmon-rose. It’s a helpful plant for partial shade, or for a woodland backyard. Sow within the open floor in March or April, or in milder areas in September.
Convolvulus H.A., 12-15 in. C. tricolor (syn. C. minor) is a bushy plant and isn’t to be confused with the climbing convolvulus. It has massive, funnel-shaped deep blue, yellow and white flowers all through the summer time and is well grown in poor soil and in full solar. Sow in March or April the place it’s to flower.
Coreopsis (tickseed) H.A., 1-2 ½ ft. Typically listed erroneously in catalogs as calliopsis, that is simply grown even in poor soil. Vegetation bear massive, broad-petalled flowers on slender stems from July to September, in shades of yellow, brown and crimson with pleasing markings in contrasting colours. Coreopsis are readily raised from seed sown within the open in a sunny place in April, or underneath glass in March for earlier flowering.
Cosmos (cosmea) H.H.A., 2-3 ft. It is a most ornamental plant with fern-like foliage and enormous, single or semi-double, daisy-form flowers on slender however wiry stems which make it helpful for chopping from July to October. The colour vary consists of orange, yellow, deep rose to sensible vermilion, crimson and white. Sow the seed underneath glass in February and March in a temperature of 60°F (16°C). Prick out the seedlings and plant out in Could in mild, well-drained soil and in full solar.
Cynoglossum (hound’s tongue) H.H.A., I4 ft. Though strictly biennial, C. amabile is often grown as an annual, both sown underneath glass in March and planted out in Could, or sown within the open in April for flowering in late summer time. The tremendous seed needs to be sown thinly. The blue-green downy foliage and turquoise-blue drooping flowers, like massive forget-me-nots, are charming. Plant in a reasonably wealthy, well-drained soil and solar or dappled shade.
Dahlia H.H.A., 1 ½-2 ft. Bedding sorts of dahlias are sometimes handled as annuals as they’re readily raised from seed. Sow the seed thinly in flats in February and March. In a heat greenhouse it ought to germinate inside ten days. When they’re massive sufficient prick out the seedlings or pot them individually. Plant out in mid-Could in a sunny place and in a fertile soil. Dahlias require ample moisture through the rising season. Any excellent crops needs to be lifted within the fall after the primary frost, and after the tubers have been washed and dried they need to be saved in a frost-free place for the winter. They might be planted out the next spring and can begin to flower in July. Or they are often put in a heat greenhouse in April to provide cuttings.
Delphinium (larkspur) H.A., 1 ½-3 ft. Seed of annual delphiniums sown in March or April will produce flowering crops by about mid-July. Seedlings don’t transplant nicely, due to this fact sow the place the crops are to flower. For earlier flowering sow within the open within the fall. The colour vary consists of shades of pink, lavender, mauve, rosy-scarlet and white and there are dwarf varieties (rift.). The three ft. tall varieties with branching stock-flowered spikes are admirable for chopping.
Dianthus (pinks) H.H.A., 9-18 in. Seed of the annual sorts of carnations and pinks, akin to Chabaud carnations (D. caryophyllus) and the Japanese pink (D. chinensis `Heddewigii) and others needs to be sown thinly in pots and calmly coated with sifted soil. Do that in February or March and place the pots in a heat greenhouse the place germination needs to be evident in per week or ten days. Prick out the seedlings into bins when they’re massive sufficient to deal with and harden off earlier than planting out in Could in well-drained soil and a sunny place. A fantastic many types of dianthus will probably be discovered listed in seed catalogs, together with D. barbatus, the candy William, H.B., 6-18 in., obtainable in a wonderful shade vary. Sow in Could or June; when 3 in. excessive transplant to nursery rows then to their flowering positions in October. The place winters are extreme transfer the crops to chilly frames and plant out in spring.
Digitalis (foxglove) H.B., 4-5 ft. The frequent foxglove (D. purpurea) makes a pleasant image in a woodland setting in partial shade -in cooler components of the nation. The colour vary consists of deep pink, purple, cream and white. There are a number of wonderful strains; ‘Excelsior Hybrids’, with flowers carried horizontally all around the stem, revealing the attractive markings inside the
florets and ‘The Shirley’, are of excellent magnificence. Sow seed within the open floor from Could to July and transfer to nursery rows when massive sufficient to deal with. Transfer crops to their flowering positions within the fall.
Dimorphotheca (star of the veldt) H.H.A.,1 ½ ft. D. aurantiaca, a South African plant revels in a sunny place the place it produces a succession of huge, showy daisy-like flowers. In uninteresting climate the flowers stay closed. It thrives in a lightweight soil. Sow outdoors the place crops are to flower in spring. In colder districts sow underneath glass in March and plant out in Could. Colours embrace salmon, apricot, buff, orange with greenish-black middle and the big ‘Glistening White’ of spreading behavior 6-9 in. excessive.
Eccremocarpus (Chilean glory flower) H.H.A., 8-10 ft. E. scaber is a fast-growing, deciduous, climbing plant. In delicate districts it’s perennial and can seed itself fortunately. Sow underneath glass in March and plant out in opposition to a heat, sunny wall or fence when all threat of frost is previous. The clusters of orange-scarlet, yellow-tipped tubular flowers are freely produced all through the summer time and fall.
Echium (viper’s bugloss) H.A., 1 ½ ft.
Compact little crops for the entrance ofa border, echium hybrids bear many bell-like flowers in shades of blue, lavender, pink and white. They do nicely in poor, dry soil and in a sunny place. The cheerful heads of flowers stand up to wind and rain remarkably nicely. ‘Blue Bedder’, shiny blue, flowers from July to September and there are additionally good dwarf blended hybrids.
Eschscholzia (Californian poppy) H.A., 1 – 1 1/2ft. These homosexual little poppies are simply raised from seed; in truth they seed themselves fortunately with out being a nuisance. There are a lot of sorts of E. californica, single, semi-double and double, in shades of yellow, orange, copper, carmine and ivory. For a scorching, sunny mattress there are few annuals of equal benefit.
Felicia (kingfisher daisy) H.H.A., 4-6 in. Virtually creeping in behavior, F. bergeriana, is ornamental on the rock backyard or the entrance of a sunny border in mild soil. Sow underneath glass in March and plant out within the open in early Could, or outdoors the place they’re to flower. A profusion of small intense blue flowers is produced from June onwards. In uninteresting climate the flowers open solely partially to disclose the yellow middle.
Gaillardia (blanket flower) H.H.A., 1 ½ ft. Maybe not so nicely often called the perennial gaillardia, the annual G. pukhella has homosexual crimson-purple flowers tipped with yellow from July to October. The stiff, wiry stems make them helpful for chopping. ‘Indian Chief’ is a putting copper-scarlet. Sow underneath glass in mild warmth in March, or within the open floor in April the place crops are to flower. Select a sunny place and well-drained soil.
Gazania (treasure flower) H.H.A., 6-9 in. These sun-loving, broad-petalled, daisies from South Africa are standard in dry areas. They’re simply raised from seed sown underneath glass in a average temperature in March. Seedlings needs to be planted out in mid-Could in full solar and a lightweight soil. The trendy
hybrids are in shades of yellow, orange, brown, pink and ruby. The markings and zones of contrasting colours within the middle of the flowers add significantly to their magnificence.
Gilia H.A., 1 ½ ft. The blue, pincushion-like flowers and fern-like foliage of G. capitata are a delight from June to September. The dainty heads of G. tricolor (fowl’s eye) are in shades of lavender, pink and white with gold throat. G. hybrida (Leptosiphon) don’t exceed 6 in. in top and are ornamental on the rock backyard or between flagstones in a
path. The small, star-like flowers are in a large shade vary. Sow in spring in mild, well-drained soil and a sunny place the place the crops are to flower.
Godetia H.A., 1 ½-2½– ft. Homosexual crops with huge, coloured cups, these are among the many hottest of hardy annuals the place summers aren’t too scorching. There are dwarf and tall varieties, double and single, in shades of pink, mauve, salmon and white. The tall varieties make sleek reduce flowers. Sow in March or April the place they’re to flower as seedlings don’t transplant readily. They like a sunny place and a lightweight soil.
Gypsophila (child’s breath) H.A., 1 ½ft. The annual varieties are quick rising and when sown within the open in April will flower from June onwards. To make sure a continuity of flower sow at intervals of two or three weeks. Seed can also be sown within the fall for spring flowering in milder districts. G. elegans produces slender stems bearing dainty white flowers and Rosea’ has pink flowers. They • thrive in any good backyard soil, ideally chalky. The flowers are admirable when utilized in preparations with candy peas, or to masks the stiffness of gladioli.
Helianthus (sunflower) H.A., 3-7 ft., or extra. The enormous sunflowers are helpful for offering a fast display screen and the seeds within the plate-like golden-yellow heads are an ideal attraction to birds within the fall, however there are different sunflowers of higher backyard benefit and of extra cheap top. Seed needs to be sown within the open in spring or in flats underneath glass and seedlings planted out in mid-Could. They like loads of solar and aren’t fussy about soil. Mammoth Russian is the biggest of all with large single yellow blooms, Italian white with darkish facilities and primrose petals.
Helichrysum (eternal flower) H.H.A., 1 ½-3 ft. The Australian helichrysums are the most effective identified of the so-called everlastings. They’re ornamental within the backyard in full solar and in a lightweight soil and when reduce and dried they’re welcome for winter preparations. The double type Monstrosum’ of H. bracteatum has a well-liked vary of shade—crimson, rose, silvery-pink, bronze and white. There are related colours in dwarf, compact varieties which make bushy crops for the entrance of the border.
Helipterum H.A., 1-4 ft. These Australian everlastings’ are simply raised from seed sown in April the place they’re to flower. They do greatest in poor, well-drained soil and in full solar. The neat globular pink flowers are pleasing and there are additionally double pink and double white varieties.
Heliotropium (cherry pie, heliotrope) H.H.P., 15-24 in. These aromatic evergreen crops are actually greenhouse perennials however hybrid varieties could also be handled as half-hardy annuals. When sown in February in pots with out a verify, they are often planted out in direction of the tip of Could and can flower within the open from July onwards. The colours vary from darkish violet to lavender and white. `Marine’ is a splendid violet-purple ; `Marguerite’ is darkish blue with a white eye.
Iberis (candytuft) H.A., 6-15 in. I. amara, the rocket or giant-flowered candytuft, and I. umbellate, the frequent candytuft are simplest when sown in daring lots, however this doesn’t imply sowing thickly. Sow within the open floor in September in milder areas for early flowering the next summer time, or in March or April for flowering the identical summer time. Candytufts do greatest in moist, wealthy soil. The dwarf varieties are helpful for edging and are obtainable in shades of lilac, rose and white.
Impatiens (balsam) H.H.A., 1-2 ft. The unique species (I. balsamina) from which the camellia-flowered and different hybrids have been raised comes from India, due to this fact don’t try and plant out whereas there’s nonetheless a hazard of late frost. Sow the seed in March in a heat greenhouse, or outdoors the place the local weather is milder. The dwarf and double varieties make engaging pot crops. The colour vary consists of pink, salmon, scarlet and white.
Ipomoea (morning glory) H.H.A., 8 ft. or extra. This free-flowering twiner is often cataloged as I. rubrocaerulea, though the right botanical identify is I. tricolor; to many individuals it’s convolvulus. Name it what you’ll the big sky-blue trumpets, 4 in. throughout, are an impressive sight from July to September. Germination might be erratic, but it surely helps if the exhausting seed cowl is fastidiously chipped with a pointy knife. It’s price taking a little bit hassle with this spectacular plant. Sow the seeds singly in small pots in a heat greenhouse in March and plant out in a heat sheltered place and in well-drained soil in late Could, or outdoors within the spot the place the crops are to flower.
Kentranthus (typically spelt centranthus) (valerian) H.A., 1 – 1 1/2 ft. Ok. macrosiphon is well raised from seed sown the place it’s to flower in a dry sunny place in spring. Blooms are produced from June to August. The grey-blue leaves and shiny rose-pink, tubular flowers make this a showy plant.
Kochia (summer time cypress, fire-bush) H.H.A., 3 ft. This neat, fast-growing foliage plant is burdened with the identify Ok. scoparia tricophila. The finely-cut mild inexperienced leaves flip coppery-red within the fall, therefore the identify fire-bush. Sow the seeds singly in small pots, or three seeds in a 31 in. pot underneath glass in April, later thinning to at least one plant. Plant out within the open in late Could. The little seedlings needs to be watered fastidiously within the early levels as they’re prone to damp off.
Lathyrus (candy pea) H.A., 1-8 ft. These fast-growing crops, derived from L. od oratus, make deep roots and due to this fact require a deeply dug, fertile, sunny web site. They don’t like extreme warmth and develop higher in cooler components of the nation. In milder areas the most effective outcomes might be obtained by sowing the seed in pots or flats within the fall. To acquire the most effective outcomes sow the seed in pots or flats within the fall and over-winter them in a chilly body (watch out for mice). Plant them out within the open in mid-March or early April. They need to begin to flower in June and, supplied fading flowers are eliminated, will proceed in flower for a few months or so. Seed can be sown within the open floor as quickly because the climate is appropriate in spring. When planting out area the seedlings r ft. aside within the row and never lower than r ft. between the rows. It’s normal to have double rows rising up brushwood stakes, or they are often grown up tripods, or on netting firmly supported by sturdy metallic posts, which can be used 12 months after 12 months. Seed catalogs checklist many tremendous fashionable hybrids in a range of shade and top, together with ‘Bijou’ (1 ft.), `Knee-hi’ (3-4 ft.) and the early-flowering `Galaxy’ pressure, tall, and sometimes producing eight flowers to every lengthy stem. See additionally Favourite Backyard Flowers.
Lavatera (mallow) H.A., 3-4 ft. Simply grown, the annual mallow, L. trimestris, has hollyhock-like flowers all through the summer time. Sow the seed sparsely, in March and April, the place it’s to flower, in a sunny place. ‘Loveliness’ is the most effective shiny carmine-rose and there’s additionally a pure white selection. Permit these crops enough area for underneath good cultivation they might attain a top of 4 ft. and make a bush 3 ft. huge. Limnanthes (meadow-foam) H.A., 6 in. Sow the seed of L. douglasii in an open sunny place in September, the place it’s to flower the next spring in delicate localities, or in March to mid-Could for later flowering. This cheerful little plant of spreading behavior has shiny inexperienced leaves and shiny yellow, aromatic, flowers, white on the ideas, a lot cherished by bees.
Linaria (toadflax) H.A., q in. Sow the seed of L. maroccana thinly within the open floor in March or April to acquire a show of snapdragon-like flowers from June to September. `Fairy Bouquet’ is of compact behavior in shades of pink, yellow, lavender and salmon, with massive flowers that final nicely when reduce. Linum (flax) H.A., 15 in. Sown in daring clumps within the open in a sunny place in spring, the scarlet flax, L. grandiflorum ‘Rub-rum’, is a simplest summer-flowering annual. The frequent flax, L. usitatissimum, with pale blue flowers on slender stems can also be pleasant.
Lobelia H.H.A., 4-6 in. additionally trailing varieties. Seed of L. erinus and its varieties, may be very small and it’s straightforward to sow it too thickly, which suggests that it’ll damp off. Sow in pots containing a sandy compost, solely calmly overlaying the seed with sifted soil. This needs to be performed in February or early March in a heat greenhouse. Prick out the seedlings a couple of month later; these ought to turn into bushy crops able to plant out in direction of the tip of Could. The trailing varieties are helpful for window-boxes and hanging baskets however require ample and common watering. Varieties can be found in shades of blue; ‘Rosamond’ is deep carmine-red with a white eye, and there’s a pure white selection.
Matthiola (night-scented inventory) H.A., r ft. Sow seeds of M. bicornis in March or April the place crops are to flower through the summer time. The lilac-mauve flowers open within the night and the perfume on a heat summer time evening is pleasant. Sown with candytuft there will probably be shade by day and scent by evening.
M. incana (ten-week shares) H.H.A., r ft. Sow seed thinly underneath glass in March and prick out the seedlings when massive sufficient to deal with. Give the crops loads of mild and air and plant out r ft. aside the place they’re to flower once they have made bushy development. The colour vary is all embracing. In milder areas seed could also be sown in borders the place the crops are to flower.
M. incana (East Lothian or intermediate shares) H.H.A., fl ft. Sow underneath glass in February or early March, in any other case deal with as for ten-week shares. East Lothian shares are vigoros, branching crops flowering in late summer time and fall. In milder components of the nation the East Lothians might be grown as biennials however are often handled as half-hardy annuals. They’re out there in crimson, scarlet, rose, lavender, white, or in packets of blended colours. M. incana can’t be advisable for areas the place the summers are heat and humid.
Mentzelia H.A., 2 ft. M. lindleyi should still be present in some seed catalogs listed as Bartonia aurea. Sown within the open floor in March or April, in a sunny place, this easily-grown plant will flower from June onwards. The massive, single golden flowers have a pretty mass of golden stamens. Mesembryanthemum (Fig marigold) H.H.A., 6 in. Of South African origin, this annual, virtually all the time bought underneath the identify mesembryanthemum, however appropriately often called Dorotheanthus bellidifiorus, requires the utmost solar and a reasonably dry soil. Of spreading behavior it’s most ornamental trailing over a dry wall or rising in loopy paving. Sow underneath glass in March or April and plant out in Could. Seed can also be sown straight outdoor the place the crops are to flower. The star-like flowers are in a variety of sensible colours.
Mimulus (monkey flower) H.H.A., 6 in.-2 ft. Many mimulus are handled as half-hardy annuals though they might show to be short-lived perennials. By sowing the seed underneath glass in March these quick-growing, moisture-loving crops will flower within the open in June and July. Seed sown within the open in partial shade in April will present a later batch of shade. The seeds are very tiny and may solely be calmly coated with sifted soil. The massive trumpet-shaped flowers are in shades of crimson and yellow with engaging markings and blotches.
Moluccella (bells of Eire) H.H.A., 2 ft. Germination of seed of M. laevis is unpredictable; sown underneath glass in March or April in a temperature of 65°F (18°C) germination could also be passable, and on different events it might germinate within the open in early Could, supplied the soil is mild and heat. The little white flowers are insignificant; it’s the massive pale inexperienced, white-netted calyces which might be so uncommon and a delight to flower arrangers. The flowers could also be dried to be used in winter.
Myosotis (forget-me-not) H.B., 6-12 in. These are simply raised from seed sown within the open floor in June. Transplant the seedlings when they’re massive sufficient to deal with into the open floor or chilly frames and plant them out within the fall the place they’re to flower, or plant them out within the spring. They’re admirable when planted with tulips, wallflowers or polyanthus. They may develop in solar or partial shade and seed themselves fortunately. There are named varieties in a number of shades of blue and carmine-pink, and in addition white.
Nemesia H.H.A., 8-12 in. Free-flowering little crops in a large shade vary, the sorts of N. strumosa are among the many brightest of the bedding crops. Sow the seed in mid-March in a cool greenhouse and develop them steadily with out a verify. Prick out the seedlings into flats and plant out in late Could or early June. Ensure that the soil doesn’t dry at any time. They might even be sown straight of their flowering positions when the hazard of frost is over. For winter flowering underneath glass as pot crops sow the seed in August.
Nemophila (child blue eyes) H.A., 6-8 in. N. menziesii is a helpful spreading plant for moist situations, in solar or partial shade. The feathery mild inexperienced leaves and sky-blue flowers with a white eye make a cheerful image for the entrance of a border or on a rock backyard. Sow within the open in March or April, or, in hotter areas, within the fall. There may be additionally a white-flowered type.
Nicotiana (tobacco plant) H.H.A., I4-21 ft. Perfume is likely one of the chief sights when the flowers often open within the night, though if grown in partial shade they typically stay open all day. ‘Sensation’ is a pressure with flowers of blended colours that do stay open in daylight. ‘Lime Inexperienced’ has uncommon greenish-yellow flowers, standard for floral preparations. Sow underneath glass in a average temperature in March. Plant out, when the chance of frost is previous, in wealthy moist soil which has been deeply dug. They flower from July to September. In milder components of the nation seeds could also be sown outdoor as quickly because the soil is appropriate in spring.
Nierembergia H.H.A., 9 in. Though strictly a perennial, N. caerulea, from the Argentine, is often handled as an annual and sown underneath glass in February or early March and planted out in direction of the tip of Could. The massive, cup-shaped, lavender-blue flowers with a pretty yellow throat are freely produced from July to September. ‘Purple Gown’ is a specific type with deep violet-purple flowers, with golden anthers.
Nigella (love-in-a-mist) H.A., 1 ½ ft. N. damascena is a favourite amongst hardy annuals and is well grown. Sow within the open in September in a well-drained soil and a sunny place for flowering from Could onwards. Seed sown in March or April will present an extended season of flower. Seedlings don’t transplant readily, due to this fact sow the place it’s to flower. ‘Miss Jekyll’, sky-blue with dainty feathery foliage is a tremendous selection; ‘Persian
Jewels’ is a lovely combination of pink, rosy-red, purple and mauve shades, additionally white.
Omphalodes (Venus’s navelwort) H.A., 91 ½ in. Resembling a forget-me-not, 0. linifolia, bears lots of pure white flowers and gray-green leaves on slender stems from June to August. Sow in spring or early fall in a lightweight, well-drained soil the place the crops are to flower. It’s a ornamental plant for the entrance of a border or on a rock backyard.
Papaver (poppy) H.A., I1-2-1 ft. Simply raised from seed, the varied annual poppies needs to be sown in August—September or March, April and Could the place they’re to flower. Shirley poppies, derived from P rhoeas, can also be sown in September to flower from Could onwards. From the opium poppy, P. somniferum, have been raised many types, together with double paeony-flowered and double carnation-flowered in many various colours. ‘Pink Magnificence’ is a good-looking double flower that exhibits up nicely in opposition to its grey foliage.
Penstemon (beard tongue) H.H.A., 12 ft. Most penstemons are perennial however there’s a hybrid race which is handled as an annual. In delicate districts and in a well-drained soil they might survive the winter and begin to flower earlier the next 12 months. The elegant tubular flowers are borne on erect stems from July to September in blended colours; pink, crimson, scarlet, mauve, white. Sow the seed underneath glass in March and plant out in a sunny place in Could.
Petunia H.H.A., 9-15 in. Trendy hybrid petunias can be found in many differing types ; large-flowered singles and doubles, compact bedding varieties, pendulous types appropriate for hanging baskets or window bins, bicolors, self-colors, some with fringed and ruffled flowers. They’re sun-loving crops, though among the new varieties are colourful even in a poor summer time. The vigorous F1 hybrids with massive trumpet-shaped flowers of uniform shade are excellent. Sow the seed underneath glass in March and develop the seedlings on steadily with out a verify. Prick out in flats when massive sufficient to deal with and develop them on within the greenhouse. Put them in a chilly body to harden off earlier than planting out in late Could or early June in a reasonably mild soil and full solar.
Phacelia (California bluebell) H.A., 9 in.- 2 ft. P. campanularia, 9 in. has massive bell-shaped sensible blue flowers and grayish-green, red-tinted leaves, which make it a most fascinating little plant of neat behavior. Sow within the spring, or fall the place winters are much less extreme, in a lightweight well-drained soil and a sunny place, the place it’s to flower from June onwards. P. tanacetifolia, 2 ft. is a bushy plant with crowded spikes of lavender-blue flowers and is commonly cultivated by bee-keepers.
Phlox H.H.A., 6-12 in. P. drummondii is a well-liked, free-flowering bedding plant in shades of pink, salmon, crimson, violet and purple, many with a putting white eye; there are additionally pure white varieties. The compact varieties are about 6 in. excessive and the `Grandiflora’ hybrids as much as r ft. Sow the seed in mild warmth in March and plant out from mid-Could onwards in a sunny place, to flower from July till early October. They can be sown outdoors the place climate situations are milder. Preserve the younger crops nicely watered.
Portulaca (Purslane or solar plant) H.H.A., 6 in. The dwarf, spreading P. grandiflora from Brazil requires a scorching, sunny place in mild well-drained soil. Sow the seed in Could the place crops are to flower as seedlings don’t transplant readily. Cowl the seed calmly with tremendous soil and preserve moist till established. Vegetation make an efficient carpet from July onwards. They’re often supplied in blended colours — double and single—scarlet, deep pink, yellow and white.
Quamoclit H.H.A., 10 ft. Q. lobata is a fast-growing twining plant with shiny crimson flowers that change to orange-yellow and fade to cream. Sow the seed in small pots in a heated greenhouse in March or early April and transfer into bigger pots when seedlings are nicely rooted. Plant out when the hazard of frost is previous in wealthy, moist soil. Seed can also be sown outdoors the place the crops are to flower.
Reseda (mignonette) H.A., 9-12 in. It is a plant of nice allure and scrumptious perfume. Sow the seed in mild, well-drained soil, ideally containing lime, in April and Could, the place the crops are to flower. Germination is improved when the soil is made agency after sowing and the seed is just calmly coated with tremendous soil. By making two or extra sowings a succession of flowers will probably be ensured. ‘Goliath’ bears massive, very aromatic, reddish spikes.
Ricinus (castor oil plant, castor bean) H.H.A., 4-6 ft. An ornamental foliage plant, R. cornmunis, has bronze-colored leaves as much as 2 ft. throughout. The flowers are insignificant however the seed pods, coated with mushy spines, include massive bean-like seeds from which castor oil is obtained. Sow the seed singly in small pots in March in a greenhouse with a temperature of 6o°F (16°C). Pot on the seedlings and plant out in June. Seed can also be planted outdoors when the soil is appropriate. Vegetation thrive in wealthy, moist soil however will most likely want staking.
Rudbeckia (coneflower) H.H.A., 2 ft. The homosexual annual rudbeckias are simply raised from seed sown underneath glass in March and planted out in Could in a sunny place, or sown outdoors the place they’re to flower. They don’t seem to be fussy about soil. Listed in seed catalogs underneath R. bicolor ‘Golden Flame’ is a golden-yellow with a darkish centre and `Kelvedon Star’ is deep yellow with a brown central disk and mahogany zone.
Salpiglossis H.H.A., 2-3 ft. The elegant, trumpet-shaped flowers, a lot of that are superbly veined, are in a superb vary of Coloration. Sow the seed in a heat greenhouse in February or March. When massive sufficient to deal with prick out the seedlings singly into small pots and develop on steadily till they’re able to plant out in early June. They can be sown outdoors when the hazard of frost is previous the place they’re to flower. They like a wealthy soil and a heat, sheltered border, and are admirable as pot crops in a cool greenhouse.
Salvia (sage) H.H.A., t-ti- ft. The vivid scarlet S. splendens, the scarlet sage, is a young perennial often handled as a half-hardy annual. Seed needs to be sown underneath glass in February or March in a temperature of about 68°F (20°C). When seedlings are massive sufficient put them into pots singly and develop them on steadily, hardening them off earlier than planting out in a sunny mattress in late Could or early June. S. horminum, H.A., i2 ft., needs to be sown in spring the place it’s to flower. `Blue Beard’ has engaging blue bracts.
Sanvitalia H.A., 6 in. Of prostrate behavior S. procumbens. A Mexican plant, types a carpet of small yellow flowers with a daring black middle. There may be additionally a shiny yellow double type. Sow within the open the place it’s to flower in a sunny place and in a well-drained soil in late April or Could. Or it might be sown underneath glass in March and planted out in Could. Sowings can be made outdoors within the fall the place winters are much less extreme. Sown in a daring mass it may be simplest.
Scabiosa (candy scabious) H.A., 11-3 ft. Sown within the open in April or Could, additionally within the fall, the annual S. atropurpurea, or pincushion flower, will make a great present from August onwards. It may be introduced into flower a lot earlier by sowing underneath glass in March and planting out in Could in a sunny border. The taller varieties needs to be supported with mild twigs in good time or they might be broken by summer time gales. They’re out there in blended colours and are admirable for chopping.
Schizanthus (butterfly flower) H.H.A., 3 ft. Normally thought of as extremely ornamental crops for the cool greenhouse, schizanthus hybrids could also be additionally grown within the backyard in a sunny place, sheltered as a lot as doable from wind. For this function sow the seed underneath glass in a heat greenhouse in March and plant out in direction of the tip of Could. There are a number of good strains, some with lovely markings on the petals, in shades of salmon, apricot, pink, yellow, mauve and purple.
Senecio (groundsel) H.H.A., 9-18 in. A refined model of the frequent groundsel, S. elegans might be fairly efficient when grown in a daring group. Sow within the open floor in April or Could in a sunny place. Seedlings will transplant if needed. It’s often obtainable in blended colors- shiny rose, lavender, pink, white with yellow middle, in each single and double.
Silene (catchfly) H.A., 9-18 in. From southern Europe S. armeria has engaging blue-green foliage and rose-pink clusters of single flowers on erect stems in summer time. Extra broadly grown is S. pendula, of compact behavior, with double flowers on 6-9 in. stems in shades of salmon-pink, rosy-purple, ruby-red and white. Seeds needs to be sown outdoor in August; when massive sufficient to deal with, the seedlings needs to be transferred to nursery beds or chilly frames, and planted out in spring.
Tagetes (African and French marigolds) H.H.A., 6 in.-3 ft. These are simply raised from seed sown thinly in a cool greenhouse in direction of the tip of March and planted out in a sunny place on the finish of Could. Seed can be sown outdoors in spring. T. erecta is the daring African marigold which makes a branching plant as much as 3 ft. in top. There are a lot of fashionable F1 hybrids in shades of yellow, orange and lemon. These are an enchancment on the sooner reasonably harsh colours. There are additionally dwarf American hybrids (t ft.). Very totally different are the petite French marigolds which make compact crops of symmetrical behavior from 6-9 in. excessive. There are single and double varieties in shades of palest yellow, orange, gold and mahogany-red some with darkish foliage.
Tithonia H.H.A., 4 ft. A vigorous, branching plant, T. rotundifolia bears massive, orange-red, broad-petalled flowers in August and September. Sow the seed in March underneath glass, pot the seedlings and plant out in a lightweight soil and full solar in direction of the tip of Could. Later blooms might be had from seed sown straight outdoors when the soil has turn into heat in spring.
Tropaeolum (nasturtium) H.A., 9 in., trailing and climbing. T. majus varieties are simply grown supplied easy guidelines are noticed. Don’t sow too early because the seedlings could also be ruined by a late frost; poor soil is preferable to wealthy which can solely encourage leaf development to cover the flowers. Late April is time sufficient to sow the place they’re to flower. There are single, semi-double and double flowered varieties in shades of glowing scarlet, golden-yellow, cherry-rose, mahogany-red and blended colours. T. peregrinum, the canary creeper, is a pretty climbing species to to ft. from Peru, bearing fringed golden-yellow flowers from July onwards. This likes a wealthy soil and needs to be sown in solar or shade in late April or Could.
Ursinia HHA 9-15in Plenty of daisy like flowers and sleek foliage make these showy South African crops a welcome addition to the summer time show. Sow the seed underneath glass in March and plant out in mid Could in full solar and in a lightweight, nicely drained soil. Sowing can be carried out in spring the place the crops are to bloom. U. anethoides, 15 in., has massive sensible orange flowers with chestnut-red zone across the centre in July and August. U. pulchra, 9 in., appropriate for the rock backyard or entrance of the border, has wealthy orange flowers with a darkish central zone. A number of named varieties are obtainable, together with ‘Aurora’, with a crimson-red middle to the wealthy orange flowers, and ‘Golden Bedder’.
Venidium (Namaqualand daisy) H.H.A., 2 1/2ft. One other. sun-loving plant from South Africa, V. fastuosum, bears massive orange flowers with a purple-black zone and glossy black middle from July to September. Sow underneath glass in March and plant out in mid-Could in a great loamy soil. Seed can be sown straight within the border in Could. Hybrids can be found in pleasing shades of yellow, straw, orange and cream, their petals attractively blotched on the base with darker colours.
Verbena (vervain) H.H.A., 6-15 in. The hybrid verbenas are simply raised from seed sown in a heat greenhouse in February or March. Germination could also be erratic and might be delayed for a number of weeks. Prick out into flats and after hardening off, plant out in a sunny place in Could. The compact varieties are admirable for window bins or for the entrance of a border. The three in. clusters of flowers are freely borne from June to September. The colour vary consists of scarlet, rose, salmon, deep bule, lavender, some with a white eye, and white.
Viola (pansy, viola) HB 6-9 in. Violas often have smaller flowers than pansies, typically self coloured, are of tufted behavior and are greatest handled as hardy biennials. Sow each varieties in flats in a chilly body or outdoors in nicely ready soil in July or August and preserve the seedlings moist and shaded. When massive sufficient to deal with prick the seedlings out in rows outdoors or in chilly frames. The place winters are much less extreme the crops could also be transferred to their flowering positions within the fall. In colder areas delay shifting the crops and defend them with a lightweight overlaying of salt hay or evergreen branches. Chilly frames ought to have the sash in place throughout frost. Don’t allow them to dry out at any time. They like a wealthy moist soil, in solar or partial shade. Sowing can be performed in March or April within the open the place they’re to flower later the identical 12 months. There are quite a few particular strains, additionally winter-flowering varieties.
Viscaria H.A., 6-15 in. Annual viscarias, primarily sorts of V.oculata, are simply grown in abnormal backyard soil. Seed needs to be sown in March or April the place crops are to flower. They’re free-flowering crops, efficient en masse on the entrance of a border, with showy five-petal flowers in pink, scarlet, crimson, blue and white, or as blended colours. They are additionally ornamental as cool greenhouse pot crops.
Zinnia H.H.A., 9 in.-24 ft. Sow the seed in a heat greenhouse in April. There may be nothing to be gained by sowing earlier as seedlings are liable to damp off throughout a chilly spell. Prick out into flats when fairly small, or singly into small pots. Harden off fastidiously in a chilly body earlier than planting out within the full solar and in wealthy, well-drained soil in early June. Seed can also be sown outdoors the place the crops are to flower as quickly because the hazard of frost is over. There’s a numerous choice from large flowered and large dahlia flowered varieties as much as 2 ½ excessive. Varieties to think about Lillipur, Pompon, Thumbelina. The vary of shade consists of scarlet, pink, orange, lavender, yellow and white.
develop a annual flower from seed.
Plant Annuals flowers
The place to plant Annuals and Biennials flowers
Annuals and Biennials for the Cool Greenhouse
use Annual and Biennial flowers
Rising Annual and Biennial crops
Annuals on your Backyard
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