Epimedium dolichostemon (long-stamened barrenwort)

Japanese name: エピメディウム ドリコステモン
Scientific name: Epimedium dolichostemon

[Overview]
A perennial 30 cm tall.
It has short creeping rhizomes.
The leaves are ternately compound; the leaflets are ovate-lanceolate to lanceolate, about 8 cm long and 3 cm wide, deeply notched at the base, pointed at the tip, glossy on the upper surface, with spiny hairs on the leaf margins.
At the stem tip it produces a conical raceme about 15 cm long, bearing four-petaled flowers sparsely (up to 38).
There are 8 sepals; the inner 4 are large and petal-like and white, while the outer 4 are small and fall early.
The petals are reddish purple and very small.
The stamens extend long and straight, and the filaments are pale yellow.

[Cultivation]
Propagate by division.
From winter through the flowering season, keep it in a sunny place, and in summer in a cool place with bright shade.
Also protect it from cold winter winds.
For plants in the ground, under deciduous trees is good.
It prefers well-drained, fertile soil.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient unless summer brings a long spell of sunny weather and the soil becomes severely dry.
If basal fertilizer is applied, no further fertilizer is particularly necessary, but for potted plants diluted liquid fertilizer may be given in spring and autumn.
There are no particular pests or diseases.

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