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ORNAMENTAL PLANTS OF HORTICULTURE VALUE

Selection of perennials

Sempervivum L.
Houseleek, hen and chickens, live-forever
Crassulaceae

About 40 species in Europe, northern Africa and West Asia. In the FSU about 15 species, most in the Caucasus.

S. caucasicum Rupr. ex Boiss.

Caucasus (Great Caucasian Range). On sandstone and limestone rocks in alpine and subalpine zone.

Leaves evergreen, forming rosette, fleshy, oblong or oblong-lanceolate with acute apex. Flowering shoots 12-20 cm. Inflorescence many-flowered, corymbose, flowers violet or lilac-pink. Fl - June-August. Fr - August-September. Numerous stolons and rosettes are formed developing a clump. P - by seed and by rosettes. Prefers sunny places, can also grow in semi-shaded sites. Excellent plant for the rock garden. Z 4 (3). New.

S. pumilum Bieb. (S. altum Turrill)

Caucasus (Great Caucasus Range, central region). Stony slopes and rocky places in the alpine zone.

Evergreen with rosette of hairy leaves. Flower stalks 20-30 cm. Inflorescence corymbose, flowers pink-purple. Fl - June. Fr - July. P - by seed and division. Grows well in full sun and partially shaded sites. Well suited to the rock garden. Z 4. New.

S. armenum Boiss. et Huet. and S. transcaucasicum Muirhead. are also of value. The Lesser Caucasus, rocky slopes. Rosettes do not produce many stolons. Flowering stem short. Flowers yellow green. Excellent plants for the rock garden. Z 5 (4).

SELECTION OF PERENNIALS
 
 
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