What blossoms in May? Doronikum
These flowers attracting a look bright saturated yellowness can be met in flower beds on spring. They are so elegant, so recover a landscape that cannot remain unnoticed even in an environment of bright primroses and tulips.
They are called doronikum (Doronicum), belong to Slozhnotsvetnye`s family, it is grassy kornevishchny perennial. About 40 species of the plants widespread in mountainous areas of Europe and Asia enter a sort Doronikum according to different data. Doronikuma have a slaborazvetvlenny upright stalk, not numerous leaves with gear edge are collected generally in a rhizome zone in similarity of the socket. The lower leaves yaytsevidno - heart-shaped on long scapes, top, on stalks with flowers, oblong. A flower - a basket it is dazzling - yellow color with a diameter from 4 to 12 cm, depending on a look. On edge of a basket reed flowers in one - two rows, in the center - tubular settle down. Height of a tsvetonos fluctuates from 15 cm at east doronikum (Gold Dwarf grade) to 140 cm at podorozhnikovy.
Doronikum - one of the most unpretentious plants for a garden, blossoms in May. Well grows on any soil, however, on sandstones grows slightly below than specific norm. On the friable fertile earth grows more magnificently and more plentifully blossoms. The open sun transfers not bad, but nevertheless feels in easy shading better. In close proximity at trunks of trees looks it is oppressed and grows worse.
Due to creation of reserves of moisture in thick rhizomes doronikum it is rather drought-resistant, however during a heat blossoming terms are reduced. Therefore in dry weather during blossoming, during formation and growth of kidneys of its renewal it is necessary to water periodically plentifully. To additional fertilizers it is undemanding, to it usually rather fertile soil. For this purpose around a bush bring the rerotting organic chemistry when redigging. If there is no such opportunity, then feed up solution of mineral fertilizers during active vegetation (April - June). After completion of blossoming of a tsvetonosa it is possible to cut off if it is not necessary to collect seeds.
On one place doronikum can grow many years, but it is better to make division of old bushes in 4 - 5 years. After a vykopka of a bush of a rhizome divide and transplant on new places. Make multiple copies it most often vegetativno, in the spring or in the fall though it is possible even during blossoming, having kept a big lump of the earth on roots. Doronikum easily breeds also seeds which sow in an open ground at the beginning of May. Crops depth - about 0,5 cm, optimum temperature - 16 degrees. At cultivation in the greenhouse or the room seeds sow on seedling in April, and transfer to an open ground in August, transplanting seedlings at distance of 30 - 50 cm from each other.
Doronikuma possess good winter hardiness and successfully winter in the conditions of a midland of Russia. In the presence of snow cover they do not need additional shelter. In low-snow winters cover from compost or fir-tree fir twigs will be useful. Spring frosts of a plant transfer well even in the blossoming state. Flowers are very decorative and perfectly stand in cut.
About 10 types of a doronikum are widespread in culture, but most often two look occur at us: doronikum east and doronikum podorozhnikovy.
Doronikum east (D. orientale) - the perennial - efemeroid is from mountain coppices of the Caucasus, the Balkans and the Mediterranean. The necklace-shaped horizontal rhizome densely becomes covered in the spring by leaves, in the first half of May stalks - tsvetonosa 30 - 50 cm high with large flowers with a diameter up to 6 - 8 cm develop. Blossoming continues about a month, then leaves begin to die off.
Doronikum podorozhnikovy (D. plantagineum) is widespread in garden floriculture from 16th century. In the nature meets in France, on the Pyrenees and even in the south of England. Differs in the large sizes: height is 1 m and more, flowers with a diameter of 10 - 12 cm (Excelsum grade). Leaves and stalks have small omission, a root - tuberiform. Unlike a doronikum east, prefers solar location. Blossoms within a month in May - June then leaves die off.
Doronikum heart-shaped (D. pardalianches) comes from Western Europe. Existence of one couple lower yaytsevidno - the heart-shaped leaves collected in the socket is characteristic of it. Plant height to 40 - 70 cm, flowers with a diameter of 4 - 6 cm
Doronikum Klusi (D. Clusii) meets in the Carpathians and the Alps, on coast of streams and in damp rocks. In height reaches 30 - 40 cm, a flower - a single basket with a diameter up to 5 - 6 cm, convex and a little hairy. Blossoming July - August.
Doronikum Kolyumna (D. Columnae) differs in a long tuberoid root. The branching stalks reach height of 80 cm, blossoms in June, flowers with a diameter of 6 cm
Doronikum - the real flower - the sun, very beautifully looks in compositions with bulbous, in rock gardens and in group landings with high perennials. In such groups it dominates in the spring, and in the summer and later grow other flowers, covering with the foliage become bare by then doronikum. Single and group landings of a doronikum on lawns create in the spring beautiful brightly - the yellow spots considerably recovering an overall picture. It is one of the most ornamental plants blossoming in spring gardens.