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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
Cenolophium are deciduous perennials with finely divided, triangular leaves and domed, compound umbels of many small white flowers
C. denudatum is a fast-growing, semi-evergreen, clump-forming umbellifer, the stock thickened with the fibrous remains of previous stem growth. Growing 60-150cm tall, the sometimes purple flowering stems rise from abundant very finely-divided dark green leaves, and bear many flat umbels of greenish-white flowers in summer and autumn. Attractive to insects
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
Exposure Exposed or Sheltered
MoistureMoist but well-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in any moist, but well-drained soil in sun or partial shade
Propagate by seed sown in containers in a cold frame in autumn or spring. Can also be propagated by root cuttings in mid-winter
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
City & Courtyard Gardens Cottage & Informal Garden Gravel Garden Wildlife Gardens Mediterranean Climate Plants Prairie Planting
Pruning None required other than cutting back foliage at the end of the season
Pests Usually trouble free
Usually trouble 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.