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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.
Other common names
hop tree shrubby trefoil
stinking ash swamp devil's bit swamp dogwood wafer ash water ash wing seed
Ptelea are large, spreading deciduous shrubs with pungently scented, 3-foliate leaves and small yellow-green flowers in summer followed by attractive winged fruits
P. trifoliata is a large, deciduous shrub with dark green, tripartite leaves to 12cm long. Sprays of star-shaped, pale green flowers appear in summer, followed by bunches of flattened, winged seeds up to 2.5cm across. Leaves, flowers and bark are all aromatic
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
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in fertile well-drained soil in full or dappled sun. Suitable for shrub border or as a lawn specimen
Propagate by seed or semi-hardwood cuttings
Suggested planting locations and garden types
Flower borders and beds Low Maintenance
Cottage & Informal Garden
Pruning Pruning group 1
Pests Generally pest free
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.