Doronikum: Planting And Care In The Open Field, Growing From Seed

The flowering plant Doronicum, also known as the trumpet plant, is a member of the Asteraceae (Asteraceae) family. In nature it is found in the mountains of Eurasia at an altitude of up to 3.5 thousand meters above sea level, as well as in regions with temperate climates. In North Africa also occurs Doronicum, but only 1 species. According to information taken from various sources, this genus unites 40-70 species.

The scientific name of this flower came from the Arabic name of an unknown poisonous plant. It has been cultivated since the 16th century and very quickly became popular among gardeners due to its undemanding care and attractive appearance.

Properties of the doronicum

Doronikum: planting and care in the open field, growing from seed

The herbaceous perennial doronicum plant has alternately arranged stem-shaped, overarching root leaf plates. The inflorescence baskets are hemispherical or broadly-column-shaped, two to six of them arranged in clusters, but they also occur singly. Leaflets of the wrapper of baskets are arranged in 2 or 3 rows.

Tubular median inflorescences are monopolar and painted yellow, they are arranged in several rows. The lingual marginal flowers are female and single-row, also yellow in color. The fruit is a blunt, ribbed, oblong-shaped seed.

Growing doronikum from seed

Doronikum: planting and care in the open field, growing from seed

Sowing

Doronikum is grown from seed through seedlings, and this is the most reliable method. However, seeds can also be sown directly into the open soil under the winter in late autumn or in May.

Sowing in seedlings carried out in April, for this purpose, using a mesh tray, which poured an earth mixture consisting of coarse sand and peat (1:1). In one cell sow 2 or 3 seeds, then cover the container with foil (glass) and moved to a place protected from direct sunlight (you need bright but diffused light). Taking care of the crops is very simple. Air them systematically, remove any condensation that may have accumulated on the surface of the cover, and moisten the soil mixture with a sprayer if necessary.

Sprouting care

If conditions are right, the first seedlings may appear 1.

5-2 weeks after sowing. Immediately thereafter, the cover is removed and the plants are moved to a brighter location, but they are also protected from direct sunlight. If natural light is very poor, then over the seedlings will have to install a fluorescent lamp or phytolamp at a height of 20 to 25 centimeters from the container. Simple incandescent bulbs are not suitable for this purpose as they can overheat and also give off rays that cannot be good for the plants.

After the plants are 40mm high, thinning should be done.

To do this, only one of the best developed seedlings should be left in each cell, and the others should not be pulled out, but cut down with sharp scissors at the level of the substrate surface. For the bushes to become more lush when the seedlings have formed a third or fourth leaf plate, they should be pruned. Planting in the open ground

Perennial planting

Doronikum: planting and care in the open field, growing from seed

What time to plant

Perennial plantings in the open ground only when the weather is warm and the spring cold returns should be left behind. As a rule, such a time is the last days of May or the first days of June. When the seedlings are about five days away from planting in the garden, you should start hardening them.

To do this, take the seedlings outdoors every day, and gradually increase the duration of this procedure. In the beginning, the seedlings should be reliably protected from wind, rainfall, direct sunlight and draughts.

Planting rules

This crop is light-loving, but it can also grow in a shady place. In order to make the inflorescences of the basket very large, you should choose a semi-shaded area for planting doronikum. But note that near the tree near the trunk, such a flower will develop and grow very poorly.

The soil on the site should be loose and moist (not wet).

Prepare the site for planting, for this purpose, conduct its digging to a depth of 20 to 25 centimeters, with the soil must be sure to make manure. When planting the seedlings, remember that after 2 or 3 years the clumps of bushes will grow strongly, and they will reach about 0.5 m or even more in cross-section. In this regard, a distance of 0.

4-0.5 m between the planting holes should be maintained. The hole should have such a diameter and depth, so that the plant taken together with a clump of earth could fit into it. When the seedlings are planted, the soil surface around the bushes is tamped down a little and then they are watered well.

Garden care for doronikum

Doronikum: planting and care in the open field, growing from seed

Growing doronikum on your plot is possible even for inexperienced gardeners.

This plant blooms twice in one season. The first flowering is greatest in spring and the second from mid- to late summer. To maintain the decorative aspect of the bush, when the inflorescence fades, the arrow must be removed.

Good watering

Since this plant has a superficial root system, it should be watered regularly and often. But remember not to allow liquids to stand too long in the soil as this can cause damage to the shrubs.

Water the plant with well-distilled water, which has been heated during the day in the sun. Loosen the soil surface around the plant should be very carefully, so as not to traumatize the roots, for the same reason, the grass from the plot should be removed only by hand. Experienced gardeners recommend covering the soil surface on the flower bed with a layer of mulch (wood chips, wood chips or grass clippings). This will keep the soil moist for much longer, slow down the growth of weeds, and prevent a crust from forming on the surface of the plot.

Fertilization

Doronikum: planting and care in the open field, growing from seed

Fertilize the bushes at the beginning of the growing season and shortly before flowering with liquid organic or complex mineral fertilizers.

Bush rejuvenation

Wedding is done at the last days of September or the first days of October. This is done by dividing the shrub. Without replanting in the same area such a culture can grow for many years, but over time there is a grinding of inflorescences-baskets, and also in the middle of the bush begin to die off old stems, all this has an extremely negative effect on the decorativeness of the plant. To begin with, the bush is extracted from the soil, then it is divided into several parts, which are planted on a new site in separate wells. On average, the doronikum is rejuvenated once every 3 or 4 years.

To ensure that the inflorescences of the baskets are always as large as possible, this procedure should be carried out every year. It is not necessary to cover such a flower for the winter.

Pests and diseases of the redwoods

Doronikum: planting and care in the open field, growing from seed

Thrips and aphids settle on this plant most often. These sucking insects suck the plant sap from the above-ground part of the shrub. If pests have settled on the doronicum, yellow spots and stripes form on its foliage, and the inflorescences are deformed and die off.

In order to get rid of pests, flowers should be sprayed with an insecticide solution, for example: Akarin, Karbofos, Aktellik or Agravertin.

But the greatest danger to such a flower is slugs, which like to eat its leaves. In order to prevent these gastropod mollusks from getting into the area with a roadnickum, its surface should be covered with a thin layer of ground hot pepper or dry mustard powder.

This plant is prone to such diseases as: powdery mildew, rust and grey rot. As a rule, plants become diseased only if they are not properly cared for or because of unfavorable weather conditions.

In order to prevent fungal diseases, you need to choose the right regime of watering, while avoiding both over-drying the soil on the site, and stagnant liquid in the root system. And you should also remove weeds from the plot in time.

If you find bushes infected with gray rot, they should be dug out and burned as soon as possible. If the bush is infested with rust or powdery mildew, it should be sprayed two to four times with a solution of Fundazole, Topaz, Oxychom or other means of similar action. Remember that the most common fungal diseases affect doronicums grown in plots where fresh manure has been systematically applied to the soil.

Types and varieties of doronicum with photos and names

The following will describe the species and varieties of doronicum that are most popular with gardeners.

Doronicum austriacum (Doronicum austriacum)

Doronikum: planting and care in the open field, growing from seed

Generated this species from the Mediterranean. The shrub, which reaches about 0.7 m in height, has straight stems that branch at the top. The leaf blades are ovate and oblong on the upper part of the shoots.

The scutellate inflorescences consist of rich yellow baskets, reaching about 50 mm across. The species has been cultivated since 1584.

Doronicum altaicum (Doronicum altaicum)

Doronikum: planting and care in the open field, growing from seed

Native to Central Asia, Mongolia, Siberia and eastern Kazakhstan. This perennial rhizomatous plant varies in height from 0.1 to 0.

7 m. The straight simple or branched stem is glabrous and finely ribbed. It may be purplish-red or brown in color. The stem may be leafless or foliose, but it is covered with glandular thick pubescence under inflorescences-cortains. The lower leaf plates are scale-shaped stalk-shaped, root ones have long petioles, while the upper and middle stem leaves are pierced or stem-shaped, obovate or spatulate.

The flower stalk is about 0.3 m long, forming 1-4 yellow inflorescences, each about 60 mm across.

Doronicum orientale (Doronicum orientale)

Doronikum: planting and care in the open field, growing from seed

Either Doronicum caucasicum or heart-shaped (Doronicum cordatum = Doronicum pardalianches). In nature, this species occurs in the Mediterranean, Transcaucasia, Middle Europe, Asia Minor and the Caucasus. It is a perennial plant with a horizontal rhizome that reaches up to half a meter in height.

Its long-petioled, root leaves are greenish green leaves with an ovoid-round shape. The stem leaves are sessile, ovate-elliptical in shape. Solitary inflorescences-baskets are formed on long peduncles, reaching about 50 millimeters across. Their tubular florets are yellow, and their lingual ones are light yellow. When flowering is over, the bushes become unattractive, due to this species is often grown in the background.

This plant has been cultivated since 1808. Popular varieties:

  1. Gold Dwarf. The bush height of this early variety is about 15 centimeters.
  2. Spring Beauty. The bush is about 45 centimeters tall, with rich yellow coloration of the marching basket inflorescences.

  3. Little Leo. The compact bush is up to 35 centimeters tall.

Doronicum columnae (Doronicum columnae)

Doronikum: planting and care in the open field, growing from seed

Native to this species is Central Europe, Asia Minor and the Balkans. The plant has a long, tuberous-shaped root. The bush varies in height from 0.

4 to 0.8 m. The flower heads, up to 60 mm across with narrow, lingual flowers, grow on stalks that are nearly glabrous. A popular variety among gardeners is Gold Ostrich: its stems are branched and therefore flower more abundantly than the main variety.

Doronicum clusii

Doronikum: planting and care in the open field, growing from seed

This species has pubescence on its surface and its height can vary from 0.

1 to 0.3 m. It is native to the alpine and subalpine belts of the high mountain meadows of Europe. Its short rhizome is thin and creeping. On peduncles there is dense pubescence under yellow single baskets, which reach up to 60 mm across.

The shape of the leaf plates resembles the jagged tip of a spear, and there are hairs on their surface.

Doronicum plantagineum (Doronicum plantagineum)

Doronikum: planting and care in the open field, growing from seed

In nature, the species is found in southwestern Europe. Such a perennial is about 1.4 m tall. The root leaf plates are oval-ovate, indistinctly dentate along the edge, tapering into a long petiole.

Flowering begins in the last days of May, inflorescences-cortains of yellow flowers reach 80 to 120 mm across. By the last days of June the foliage on the shrub dies off. It has been cultivated since 1560. The following varieties are very popular with gardeners:

  1. Excelsium135>. The bush is about one and a half meters tall, with the basket-like inflorescences reaching up to 100 mm across.

  2. Miss Mason. The bush reaches a height of about 0.6 m.

Doronikum oblongifolium

Doronikum: planting and care in the open field, growing from seed

This plant can be found in nature in Kazakhstan, the Caucasus, Siberia and the mountainous areas of Central Asia, but prefers to grow in subalpine and alpine meadows, on stony screes and along stream banks. The height of this perennial varies from 0.

12 to 0.5 m; its rhizome is short. The twisted single stem below the basket inflorescence is thickened and densely pubescent, and in some cases it has a violet-red coloration in the upper part. The lower stem leaves are oblong-obovate in shape and sit on petioles with broad wings; the root leaves are obtuse elliptical and have long petioles, while the upper stem leaves are small oblong-oblong. On a long flower stalks single baskets are formed, reaching up to 5 cm across; their reed flowers are yellowish in color.

Doronicum turkestanicum

Doronikum: planting and care in the open field, growing from seed

This rhizomatous perennial reaches up to 0.75 m in height. Under natural conditions the species can be found in Kazakhstan, Siberia and the eastern part of Central Asia. The lower 1/3 of the solitary stem is covered with sparse glandular hairs, while the leaves cover ½ or 2/3 of it. The stem is strongly pubescent and thickened beneath the basket-like inflorescences.

Leaf blades gradually become smaller towards the top of the stem, and may be obovate-lobate, elliptical, rounded or oblong. The baskets are solitary, 30-40 mm across, with pale yellow lingual flowers and dark yellow midrib

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