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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:
the RHS today and get 12 months for the price of 9
Other common names
cobweb houseleek cobweb sedum
Sempervivum are evergreen perennials forming mats of fleshy-leaved rosettes, often attractively coloured, with star-shaped pink or pale yellow flowers in summer
S. arachnoideum is an evergreen perennial forming a mat of fleshy rosettes 1-3cm across, leaves green or reddish, with cobwebby white hairs at the tips. Starry pink flowers 1cm in width in flat cymes on stems to 12cm
Pyrenees to Carpath.
Habit Mat forming
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 North-facing or West-facing or East-facing
Exposure Exposed or Sheltered
pHAcid, Alkaline, Neutral
Up to 10 cm
Time to ultimate height
Grow in moderately fertile well-drained soil in full sun. Protect from excessive winter wet. Suitable for rock garden, scree bed, wall crevice, trough or alpine house
Propagate by seed sown in spring, or root offsets in spring
Suggested planting locations and garden types
Flower borders and beds Garden Edging Ground Cover
Cottage & Informal Garden Gravel Garden Rock Garden Patio & Container Plants
Pruning No pruning required
Pests Can get vine weevil
May be subject to a rust
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