Hemerocallis middendorffii is a species from the Russian Far East, northwest China, Korea, and Japan. It grows in meadows, mountain slopes, open woods, and scrub. It is cultivated in Asia for its edible flowers.

Description

Herbaceous perennial with linear arching leaves to 60 cm. Flower scapes 20–90 cm. Flowers 5–6, golden yellow to clear orange, large in a terminal head. Flowers in July for 2–3 weeks and often reblooms in September.

Two varieties are recognized:

• var. middendorfii: To 90 cm. Flowers orange, odorless with elliptic to spathulate tepals. Bracts ovate, 2–2.5 cm. The range of the species.
• var. longibracteata Xiong: 20–35 cm. Flowers yellow, fragrant with lanceolate tepals. Bracts ovate-lanceolate, 3–6 cm. Endemic to China.

Cultivation

Easily cultivated on moist soil in a sunny site, but can tolerate poor soil and partial shade. Propagated by division and by seed. Takes 2–3 years to flower from seed. Plants prefer a neutral to slightly acid soil and will suffer in very acid or alkaline soils. Generally free from pests and diseases. Hardy to USDA zone 4.

References

• Flora of China http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=240001298

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