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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
double Canada puccoon 'Plena'
Sanguinaria canadensis 'Plena' Sanguinaria canadensis 'Flore Pleno'
Sanguinaria are rhizomatous herbaceous perennials with kidney-shaped, lobed blue-green leaves and cup-shaped white flowers opening with the leaves in spring
'Plena' is a rhizomatous perennial to 20cm in height, with grey-green, kidney-shaped leaves enlarging to 15cm in width after flowering. Flowers solitary, 7cm in width, white, fully double
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 or East-facing
MoistureMoist but well-drained
SoilSand, Chalk, Loam, Clay
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in a moderately fertile, moist but well-drained soil that does not dry out; best in full sun or partial shade. Usually needs support and the rhizomes can spread and become invasive so site with care
Propagate by division in spring or autumn
Suggested planting locations and garden types
Underplanting of Roses and Shrubs Flower borders and beds
Cottage & Informal Garden Rock Garden
Pests Slugs may be a problem
Generally disease free
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.