Coreopsis: planting and care in the open ground

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Coreopsis belongs to the Astrov family. Homeland - States of America with a temperate climate. Planting does not require special skills and care for the bush is simple. Due to this, they are often decorated with gardens, summer cottages.

Botanical Description of Coreopsis

Coreopsis is a perennial or annual rhizome. The stems are thin, highly branched 0.4-0.9 m.

Green leaves are maple-shaped or dissected to the main vein, lanceolate or narrowed. They grow on the lower half of the stems, located crosswise.

Yellow, brownish-red, pinkish and raspberry flowers with a dark spot in the center begin to form in June. They are simple and terry. They have 8 linear, narrowed petals with serrated ends. The end of flowering occurs only at the first cold.

In place of the flowers, flat seed bolls appear. They contain up to 5 hundred seeds. From Greek, coreopsis is translated as bug-like. This is due precisely to the fruits that are similar to these insects.

Types of Coreopsis

The genus includes about a hundred varieties, but not all of them are suitable for cultivation in our climate. In Russia, the following coreopsis are bred:

Type and descriptionVarietiesLeavesFlowers / Flowering Period
Large flowered

Shoots erect, branching. Requires transplantation every 3 years.

  • Calypso.
  • Baden Gold.
  • Mayfield Giant.
  • Sunshine.
  • Early sunrise.
Basal - simple. Cirrus-dissected located on the stem.Golden yellow, the core is darker. On strong pedicels.

From midsummer to cold weather.

Lanceolate

Branching shoots form a bush up to 60 cm.

  • The golden queen.
  • Zaryanka.
  • Gold coin.
Simple, lanceolate, petioles.Yellow, on drooping inflorescences.

July-September.

Whorled

Up to 1 m. Able to grow without transplant for about 6 years.

  • Moonlight.
  • Mercury Rising.
  • Golden Rain.
Pale green, needle-shaped, sessile.Needle, reed, sunny shade. Collected in stellate inflorescences.

July to October.

Auriculate

Up to 40 cm.

  • Nana.
  • Zampfire.
Simple, medium sized. Cover the stem halfway.Golden, small, similar to daisies.

From 2 months of summer until mid-autumn.

Pink

Thick bush.

  • Sweet dream.
  • Gates of Paradise.
Skinny, linear.Pinkish, in the center of the canary color.

June-September.

Dyeing

An annual bush with a thin, branched stem.

No gradesNarrowed, elongated. Grow to the middle of the stem.With corrugated petals, amber with a dark red middle.

July-October.

Drummond

40-60 cm.

Large, bright lemon with a reddish-brown core.

July.

Golden baby

Up to 40 cm.

On petioles, lanceolate or almost linear. Rising to the top of the trunk, they begin to thin.Yellow, terry, orange in the center.

From midsummer to fall.

Landing of coreopsis in the open ground

The bush is planted in a lighted place. In the shade, he may die. For abundant flowering, take loose, light, medium fertile soil.

Perennial is best sown with seeds. In order for the bush to bloom in the 1st year, in winter the planting material is placed in small containers, which are left in a warm room until spring. When the snow falls, seedlings are planted in open ground. Special care for the shoots is not necessary. It is enough to provide young bushes with bright light and regular moisturizing.

If you decide to sow seeds immediately on the street, this is done in spring or autumn. Planting material tolerates low temperatures. The first shoots are thinned out and subsequently monitored so that weed grass does not interfere with the development of the bush.

Care for coreopsis in the garden

The shoots of coreopsis grow rapidly, so the bush is divided every 3-4 years and transplanted to a new place. Shallow pits are dug in the ground, between them 0.5 m retreat.

Adult plants are resistant to drought, they do not need to be watered often. Only if necessary, when the soil will crack from drying out. Varieties with pink and reddish flowers are watered more abundantly.

The soil around the bush is regularly loosened. Fertilizer is applied only to poor soil once a year in July. Mineral mixtures are used, organics are undesirable for coreopsis.

Species with long, thin stems are tied up. Otherwise, they will break under strong gusts of wind. Wilted inflorescences are immediately cut off. Thanks to this, the buds can begin to form in the same year.

In the cold season, the stems are cut off under the base, with the exception of the large-flowered coreopsis, it can freeze. It needs to be dug, transplanted into a container and brought into the room. The plant is winter-hardy and calmly tolerates frosts. However, in the north it is advisable to cover the bush with spruce spruce branches or foliage. During the thaw, the root system may rot due to melting snow. Therefore, around the bush you need to make small ditches for draining excess water.

Reproduction of coreopsis

The flower is bred by dividing rhizomes, cuttings or seeds. The first method is preferable, since it is simpler and more productive. Spend it in early spring, as soon as the snow melts:

  • Loosen the soil around the bush.
  • Carefully take out the plant so as not to damage the root system.
  • Divide the rhizome with a sharpened knife so that 2-3 buds remain on each shoot.
  • Seedlings. Carry out the same care as an adult bush.

Propagation by cuttings is carried out in June-July:

  • Trim healthy shoots with several leaves 10 cm below the internode.
  • Remove greens from the bottom.
  • Place cuttings in containers (no more than 3 in 1 pot).
  • Keep in partial shade, water when drying the top layer of the earth.

Seed propagation method step by step:

  • In March, evenly distribute the seed over the surface of the nutrient substrate.
  • Press into the ground with a small plaque.
  • Cover with polyethylene or glass to create greenhouse conditions.
  • Remove the shelter daily for ventilation and watering. When the first shoots emerge (after about 10 days), remove the film or glass completely.
  • After the appearance of a pair of real leaves, transplant in separate pots.
  • When the crops grow to 10-12 cm, re-pick.
  • Land in open ground in May. After hardening the young bushes (daily take out for several hours on the street).

Diseases and pests of coreopsis

Coreopsis is susceptible to the following diseases and insect damage:

Description of the problemCauseMethods of struggle
  • Brown, white, dark spots on greens of various shapes and sizes.
  • Premature drying and dropping of leaves.
Spotting.
  • Remove affected areas.
  • Normalize conditions (watering, humidity, temperature).
  • Apply preparations Abiga-Peak, Vitaros, Bordeaux mixture.
  • Rotting of the rhizome and root system.
  • Thinning stems.
  • Yellowness and brown spots on the plates.
Fusarium
  • If the disease is widespread, the bush must be destroyed.
  • With partial damage, you can try to grow a new instance from a healthy cuttings (before planting it must be soaked for 8 hours in a solution of Fundazole with a drop of Epin).
  • Red, oval plaques, merging over time and becoming rusty stripes.
  • Yellowing, drying and falling of greens.
Rust.
  • Use sulfur-containing drugs.
  • Treat with Bordeaux liquid, Polearm, Cumulus.
  • Growth retardation.
  • Deformation of the plates.
  • Twisting the ends of the shoots.
  • White spots on the green.
Viral infection.
  • The bush cannot be saved. It must be destroyed.
  • Disinfect the area where the plant grew (for example, potassium permanganate).
  • Small insects are black or green.
  • Syrupy coating.
  • Withering bush.
Aphid.
  • Wipe with soapy water.
  • Treat with garlic or citrus solution.
  • Apply Actofit, Intavir.
  • Slowing down plant growth.
  • Lack of flowering.
  • Early fall of foliage.
  • The presence of insects and larvae on the bush.
  • Deformation of sheet plates.
Defeat by bugs and caterpillars.
  • Collect insects by hand.
  • Wipe the leaves with water and powder.
  • Use the poisonous drugs Aktara, Valar, Actellik, sold in specialized stores.

If you provide optimal conditions of detention, proper care, coreopsis will not be afraid of these lesions. To prevent the settlement of insects on the flower, it must be regularly inspected for the presence of their larvae.

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Watch the video: Tips for Dividing Perennials in Transplanting (November 2024).