Eremurus olgae

Eremurus olgae is a perennial in the Asphodelaceae family. Its native range runs from Iran into Central Asia. Records include northern Afghanistan, Kyrgyzstan, Tajikistan, and Turkmenistan. It grows in temperate regions on foothills and mountain slopes. These sites have loess, a fine soil laid down by wind. The plant is not native to Britain or Ireland.

In gardens, it reaches about 6.6 feet (2 metres) tall. Its spread reaches about 3.3 feet (1 metre). It suits planted beds, where its height adds interest. Flowers appear from July to September, according to Plants For A Future. That source describes a flowering period of about two months. The blooms have a strong scent like that of lilies. Each flower has both male and female parts. Insects pollinate them.

Give this plant a warm, sunny site with shelter. It does not grow in shade. It prefers rich, light sandy loam that drains very well. Sandy and loamy soils both suit it. It accepts mildly acid, neutral, and mildly alkaline soil. Soil can be dry or moist during growth. The plant also tolerates drought. Keep it dry in summer once flowering has ended. Plants For A Future lists USDA hardiness zones 5–9.

Winter wet and late spring frost need care. A layer of sharp sand can help during wet winters. An autumn mulch can give extra winter cover. Remove organic mulch in spring to reduce rot in new growth. Protect young shoots where late frosts occur. The roots dislike disturbance, so avoid needless moves or division. Divide only when needed, after growth dies down in late summer. When planting, leave the crown slightly above the soil surface.

Seed offers another way to raise new plants. Sow fresh seed in a cold frame in autumn. Germination may take one to twelve months at 59°F (15°C). Keep seedlings in a greenhouse through their first winter. Plant them out in late spring after frost risk has passed. No edible or medicinal uses are recorded by Plants For A Future. It reports no known hazards, which does not prove safety. The roots have a recorded use in making glue.