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The eye-catching flowers of the numerous Clematis varieties are still very popular with hobby gardeners. Particularly popular are the large-flowered Clematis hybrids, which have their main flowering period in May and June. Not so well known are the so-called botanical species. Many bloom during the flowering break of the hybrids, so you can enjoy uninterrupted flowering from April to October with a clever combination.
Growth and cut
Many Clematis varieties develop enormous growth power and climb trees and screens in no time. Some also require regular regrooving to maintain their willingness to flower. Depending on the group, however, the timing and type of pruning are different: For example, Clematis alpina and Clematis montana may need a slight pruning, which should take place immediately after flowering.
This mountain clematis (Clematis montana), which climbs up an old wall, is a real feast for the eyes and covered with flowers all over
The shoots of the large-flowered hybrids can be reduced by about half during the winter months. The more you cut, the more you promote the second flowering in the new budding in late summer in the twice-flowering varieties. However, this is at the expense of the first flowering phase. Therefore, a balanced pruning, in which sufficient annual shoots with flower buds are preserved, the royal road. For late-flowering clematis varieties (flowering after 10 June): On a frost-free day in November or December, cut off 20 to 30 centimeters above the ground. So the plants will be fresh again next year.
Early flowering clematis varieties
Clematis alpina 'Ruby' and Clematis macropetala 'White Lady'
Among the early-flowering Clematis varieties include, for example, the mountain-clematis (Clematis montana), the clematis clematis (Clematis alpina) or the large-flowered clematis (Clematis macropetala) and their hybrids. Clematis varieties, which already bloom in spring, usually prefer a sunny and sheltered location and a well-drained soil. Heavy soils should be improved with some sand before planting. The flowers of the early flowering varieties appear on the previous year's editions. A regular cut is not necessary, if necessary - for example, because the plant has become too large or too old - the species and varieties of this group can be shortened immediately after flowering. So they have enough time to form new shoots with flowers until next year. Early flowering Clematis varieties usually have unfilled and bell-shaped flowers. The leaves may be evergreen or deciduous depending on the variety.
Among the early-flowering Clematis varieties, there are also some exceptions that prefer a cooler location. Species of the alpina, macropetala and hybrids - in summary known as "atragene" - are ideal for a more shady location. The varieties of Clematis alpina also delight their owners with a re-flowering in the summer. Late-flowering varieties of the vigorous Clematis montana are often used for greening large trees, pergolas and buildings.