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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
© Mike L. Grant 1998
the RHS today and get 12 months for the price of 9
Other common names
common cotton grass
Eriophorum polystachion Scirpus angustifolius
Eriophorum are evergreen rhizomatous perennials forming spreading clumps of tufted, linear leaves, with solitary or clustered, ovoid black-scaled, silky-haired flower-heads, followed by conspicuous cottony white fruiting heads
E. angustifolium is a vigorously spreading perennial forming many tufts of dark green, linear leaves, with white-hairy flower-heads in summer
Subarctic & Temp N Hemis.
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or West-facing
Exposure Sheltered or Exposed
SoilSand, Clay, Loam
Time to ultimate height
Grow in acid soil at pond margins, in full sun, in water up to 5cm deep
Propagate by division in spring
Suggested planting locations and garden types
Pruning Deadhead regularly
Pests Generally pest free
May be affected by powdery mildews
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Join the RHS today and get 12 months for the price of 9