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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.
the RHS today and get 12 months for the price of 9
Other common names
agave-leaved sea holly
Eryngium can be annuals, biennials or perennials with simple or divided leaves, often spiny edged, and cone-like flower-heads often surrounded by an involucre of conspicuous spiny bracts
E. agavifolium is a handsome evergreen perennial forming a rosette of sharply toothed, sword-shaped leaves to 45cm long, with small, green thimble-like flower-heads on branched stems in late summer
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect East-facing or South-facing
Exposure Exposed or Sheltered
pHNeutral, Acid, Alkaline
Time to ultimate height
Grow in dry, well-drained, poor to moderately fertile soil in full sun. Protect from winter wet
Propagate by seed or division
Suggested planting locations and garden types
Flower borders and beds
Cottage & Informal Garden City & Courtyard Gardens Coastal
Pruning Cut back after flowering
Pests Slugs and snails may be troublesome
May be subject to powdery mildews
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.