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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
Cerinthe major var. purpurescens
Cerinthe can be annuals, biennials or perennials, with simple, often greyish leaves and tubular flowers borne in a pendent terminal cluster with conspicuous bracts
'Purpurascens' is an upright annual to 60cm, with blue-green leaves and tubular yellow and purple flowers with conspicuous purple bracts
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
SoilLoam, Chalk, Sand
pHNeutral, Acid, Alkaline
Time to ultimate height
Grow in a well-drained, fertile soil in a sheltered position in full sun
Propagate by seed sown in gentle heat in spring, plant out when the danger of frost has passed
Suggested planting locations and garden types
Flower borders and beds
City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants
Pruning Cut back after flowering
Pests Generally pest free
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Buy from £2.79 at the RHS Plants Shop
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.