Himalayan fleeceflower is a low, mat-forming perennial groundcover from high Himalayan slopes, grown for its pink or rose-red flower spikes from midsummer into autumn. It needs cool, well-drained conditions and does poorly in hot, humid summers.
Family
Polygonaceae (Buckwheat family)
Grows as
Shrub
Light
Full sun, Part shade
Water
Keep soil evenly moist during growth and let the top layer dry slightly between waterings.
Soil
Free-draining, moisture-retentive soil, such as a gritty loam or rockery mix.
Temperature
10–20 °C; hardy to about -20 °C, dislikes prolonged heat above 30 °C.
How easy
Easy
Native range
E. Afghanistan to Himalaya
Climate
subalpine or subarctic
About
Bistorta affinis (synonyms Polygonum affine, Persicaria affinis), the Himalayan bistort, fleece flower, or knotweed, is a species of flowering plant in the family Polygonaceae, native to the Himalayas (Tibet, Nepal, northern India, Pakistan, Kashmir).
How to grow it
Bistorta affinis is used ornamentally as groundcover. Under the synonym Persicaria affinis the following cultivars have gained the Royal Horticultural Society's Award of Garden Merit:
'Darjeeling Red'
Where it grows
Bistorta affinis is found in the Himalayas, from Afghanistan to eastern Nepal, at altitudes of 3,000–4,800 m (9,843–15,748 ft).
Text excerpted from the Wikipedia article Bistorta affinis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.