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ORNAMENTAL PLANTS OF HORTICULTURE VALUE

Selection of perennials

Incarvillea Juss.
Hardy gloxinia
Bignoniaceae

About 10-12 species mainly in China. In the FSU 2 species.

I. olgae Regel

Central Asia (Pamiro Alay). Sandy and rocky slopes at 700-2,500 m.

Stems 100-150 cm, woody at the base, branched in upper part. Leaves opposite, 5-10 cm long, simply pinnate or on the upper part of stem simple and narrowly elliptic. Flowers in a sparse panicle, large, 2.5-3.5 cm long, 2-2.5 cm diam., pink-purple, very numerous at the height of flowering. V - mid-spring to late autumn. Fl - mid-summer, for a month or longer, June-August in St. Petersburg. Fr -September-October. P - by seed, sown just before the winter or by division in early spring. Can grow without watering for a long time, in sunny places or light shade. Z 6 (5). Poorly known in cultivation.

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