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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:
© RHS 1985
the RHS today and get 12 months for the price of 9
Other common names
black samson hedgehog cone flower
purple cone flower purple daisy eastern purple coneflower
Rudbeckia echinacea purpurea Rudbeckia purpurea
Echinacea are erect, clump-forming rhizomatous perennials with simple or pinnately lobed leaves and solitary, long-stalked daisies with prominent conical central disks and often drooping ray florets; attractive to butterflies
E. purpurea is an upright perennial with coarsely hairy, ovate or lance-shaped leaves and solitary flower-heads to 12cm across with slightly reflexed, light purple rays and brown central disk
C&E North America
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 East-facing or West-facing
Exposure Exposed or Sheltered
SoilSand, Loam, Chalk
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in deep, well-drained, humus-rich soil ideally in full sun although they can tolerate some shade
Propagate by seed sown at 13°C in spring. Propagate by division in spring or autumn although they resent a lot of disturbance. Propagate by root cuttings from late autumn to early winter.
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
Cottage & Informal Garden Wildflower meadow Wildlife Gardens Prairie Planting
Pruning Cut back stems as the blooms fade to encourage further flower production
Pests Generally pest free
Generally disease free
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Join the RHS today and get 12 months for the price of 9