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  • Biennial ornamental plants

    Name

    Name

    Height

    Number of plants per m2

    Flowering time

    Color of flowers

    Ageratum

    15-25

    100

    VI-IX

    White, blue, lilac

    Alissum

    10-20

    100

    VI-X

    White, purple

    Astra

    15-50

    16-25

    VIII-IX

    White, blue, blue, violet, pink, red, yellow

    Marigolds high

    60-100

    10-25

    VII-IX

    Orange, yellow

    Marigolds are low

    30-50

    10-25

    VII-IX

    Orange, yellow

    Begonia

    15-25

    100

    V-IX

    White, redred

    White, blue, pink, red, purple

    Carnation Shabo

    40-60

    25

    VII-IX

    White, pink, red, yellow

    Heliotrope

    25-30

    25-50

    VI-X

    Purple

    Iberis

    25-30

    25

    VI-IX

    White, lilac, purple

    Calendula

    50-70

    9-25

    VI-VIII

    Orange, yellow, red

    Clarkia

    40-50

    16-25

    VI-IX

    White, pink, purple

    Cosmey

    70-100

    16

    VI-IX

    White, pink, red

    Levkoi

    20-80

    25-50

    VI-VIII

    White, blue, purple, pink, yellow

    Lobelia

    10-15

    100

    VI-IX

    White, blue, blue

    Poppy

    60-100

    25

    VII-VIII

    White, pink, red, purple

    Mattithiol

    30-40

    25-50

    VII

    Purple

    Nasturtium

    25-30

    16-25

    VII-IX

    Orange, red, yellow

    Petunia

    25-35

    25

    VI-IX

    White, blue, purple, pink, red

    Reseda

    20-40

    25

    VI-IX

    White, yellow

    Chamomile

    50

    25-50

    VII-IX

    White

    Salvia

    20-40

    25-50

    VII-IX

    Red

    Scabiosa

    60

    25

    VII-X

    White, blue, red

    Tobacco fragrant

    60-80

    10-25

    VI-X

    White, pink, red

    Phlox Drummond

    30-40

    50

    VI-X

    White, blue, pink, purple

    Chrysanthemum

    50-60

    25

    VII-IX

    White, yellow, red

    Zinnia

    40-60

    25-50

    VII-IX

    White, pink, red, orange, yellow

    Ashdolla

    25-40

    50

    VI-IX

    Yellow, red

    Biennials are plants that have a development cycle for 2 years. Typical biennials are characterized by the fact that in the year of sowing they usually do not blossom, they form a rosette of leaves, deciduous mass, form a plant, flowering occurs only the next year. Such biannuals include the middle bell, forget-me-not, night violet( Hesperis, poppy alpine, mullein, lunnitsa).Some perennials are cultivated as biennials: carnations, daisy, foxglove, Vitrokka violet( pansy), shtokrosu( malva), and evening primrose. These plants do not die after 2 years, but can continue to develop in the years to come, however

    The characteristics of some

    annuals are small and degenerate. Therefore, perennials are grown according to a two-year scheme, since in the second year they develop most actively, abundantly bloom and have a good decorative appearance.

    Biannuals are grown according to the following scheme: sowing in the early to mid summer, one sprouting shoot, landing at the end of summer, flowering in spring or early summer next year. In gardening and garden culture biennials are widespread, as they bloom in the spring or early summer. For example, violet, forget-me-not, daisy are irreplaceable plants for spring floral decoration, easily transfer the transplant in blossoming condition.

    Carnation, bell, hesperis( terry form) give a fine cut material, stable in water and easily transportable.

    For the most part, biennials are cold-resistant and undemanding plants that form full-fledged virgin seeds. Such biennials as forget-me-not, poppy, bell, carnation, carnion, are easily seeded, you can get good strong seedlings from self-seeding.

    Mass sowing of biennials in the open ground is carried out in the third decade of May or the first or second decade of June: a clove of grenadines, Turkish, bell, medium, foxglove, shrochrose pink( malva).The site for them should be prepared in the autumn. In the spring, heavy soils are dug to a depth of 18-20 cm, the lungs simply loosen. The biennials are sown immediately to the site, and then thinned or on the sowing ridge with the subsequent picking in the development phase of the first real leaf and planting in the soil to the place in August - early September. Seeds are sown in moist soil, if it is dry, it must be watered. Seeds are sprinkled with a thin layer of dry earth( not more than 0.5 cm) and compacted. On 1 m2 2-3 grains of Vitrokka violet seeds, 1,5-2 g of gesperis, daisies and forget-me-nots are sown. In sunny weather, crops are pritenyayut using cover material, which at the corners pressed to the ground with stones. Seeds germinate in 7-14 days. When emergence of sprouting material is not removed, but only slightly relaxes its tension, giving space to the growing seedlings. In summer, the seedlings of biennials can wither quickly in the heat, so they should be watered daily in the morning, and sometimes in the evening, raising the covering material.

    Along with seed reproduction for almost all biennials, an insufficiently widespread method of propagation by green cuttings in the open ground can be recommended. In addition, a number of biennials( daisies, forget-me-nots, violets, foxglings, etc.) can be multiplied by dividing bushes. Application of vegetative propagation( cuttings, fission) is of particular value: with this method of reproduction, the decorative qualities of the mother plant are completely preserved, which is especially important when they are trying to obtain specimens with deliberately monochromatic or dusky flowers. With seed multiplication, this can not always be achieved.

    Timing of sowing in open ground of some biennials

    Plant Planting time

    ( month / decade)

    Pansies May III, June II

    Handbell Medium May, June

    Mack Alpine May, September

    Malva( shtroroza) May I

    Daisy June IIDigitalis purple May, September

    Forget-me-not May, June

    Turkish carnation May, September

    Enotera May III, June

    A great advantage of the biennial culture is that when propagating them both in seed and vegetative ways is not requiredgreenhouses and greenhouses. Thanks to this

    Characteristics of some biennials

    Name

    Height, cm

    Number of plants per m2

    Flowering time

    Color of flowers

    Pansies

    15-20

    16-25

    V-VI

    Blue, white, blue, purple, red, Pink asd

    Pink asd

    30-50

    10-25

    VI-VII

    White, pink, red

    Hand bell

    50-70

    10-25

    VI-VII

    White, blue, lilac, pink

    Malva( shozroza)

    150-200

    1-4

    VII-IX

    White, pink, red, yellow

    Daisy

    10-15

    50

    V-VI

    White, pink, red

    Digitalis

    100-150

    10-25

    VI-VII

    White, lilac, pink, red

    Forget-me-not

    20-35

    25-50

    VI-VII

    White, blue, pink

    Enotera

    20-25

    15-20

    V-VI

    Yellow

    reproduction and growing of biennials is very affordable in different climatic conditions. In addition, it is much cheaper cost of obtaining seedlings of almost all species of biennial ornamental plants.