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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 1971
the RHS today and get 12 months for the price of 9
Other common names
marsh marigold kingcup
boots brave bassinets bull flower cow lily crazy Beth crowfoot drunkards goldes golds goldings gools horse blob May blob mare blob marybuds meadow-bright meadow buttercup meadow cowslip meadow gowan publican's cloak publicans-and-sinners soldier's buttons water boots water buttercup water cowslip water dragon water goggles water gowan yellow gowan
Caltha are rhizomatous herbaceous perennials with simple, usually heart-shaped leaves and cup-shaped yellow or white flowers in early spring
C. palustris is a rhizomatous herbaceous perennial to 50cm, with rounded, rich green leaves and clusters of deep yellow flowers 4cm in width
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
pHNeutral, Acid, Alkaline
Time to ultimate height
Grow in an open site in rich boggy soil at the water's edge in full sun
Propagate by seed sown as soon as ripe or by division in late summer or early spring
Suggested planting locations and garden types
Pruning Cut back after flowering
Pests Generally pest free
Powdery mildews may be a problem
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Buy now from the RHS Plants Shop
Buy from £9.99
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.
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Join the RHS today and get 12 months for the price of 9