ORNAMENTAL PLANTS OF HORTICULTURE VALUE
Selection of perennials
About 120 species in the Northern Hemisphere, mostly in Arctic
regions and mountains, 37 occur in the FSU flora, and are native
to the Caucasus, Central Asia, Siberia, the Far East, and the
Arctic regions, with only a few in the European portion. The
genus includes annuals, biennials and perennials. Among the
perennial species some are of gardening interest.
A. kozo-poljanskii Ovcz. (syn. A. barbulata Ovcz.)
Caucasus. In alpine and subalpine regions, on rocky, chalky and
steppe slopes and screes at 1,400-3,000 m.
Plant forms a cushion or a small mat. Rosette leaves overwintering,
lanceolate, 7 mm x 1 mm, grey-green, densely silky-pubescent. Flower
stalks 3-6 cm, hairy. Flowers 3 to 6 in umbels, 8-12 mm diam.,
pink-purple or milk-white. V - evergreen, new growth beginning in
early spring, a second flush of leaves in summer (July). Fl -
May-June, for three weeks but in southern regions April. Fr - June,
July. P - by seed or cuttings. Requires a protective cover in
northern regions. Z 5. New.
Also of gardening interest are:
A. akbaitalensis Derganc.
Central Asia (Tien Shan, Pamiro Alay). Cushion dense.
Cushion dense. Leaves small, lanceolate, silver-green. Umbel
with 6 to 10 white-pink flowers 7-8 mm across. Good for the rock
garden. Z 4. New.
A. bryomorpha Lipsky
Cushions small, very dense. Leaves small, grey green. Flowers
solitary, pink with white tinge, 4 mm diam. Requires dry gravelly
soil. Good for the rock garden. Z 4. New.
A. dasyphylla Bunge
Mountains of southern Siberia and adjacent regions of Central
Mat-forming plant with numerous branched stems. Leaves small,
grey-green. Flowers small, 1 to 3 in an umbel. Very well suited
to the rock garden. Z 4. New.