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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
Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem
A. aflatunense, as described by B. Fedtsch, is a bulbous perennial with slightly ribbed stems and linear, mid-green basal leaves, 30-60cm long. Dense umbels, 10cm across, of star-shaped purplish-pink flowers appear in summer to 1m high
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
Exposure Sheltered or Exposed
SoilSand, Chalk, Loam
pHAcid, Neutral, Alkaline
Time to ultimate height
Grow in fertile, well-drained soil in full sun. See allium cultivation for further advice
Propagate by seed in containers in a cold frame, when ripe or in spring; propagate by removing offsets in autumn
Suggested planting locations and garden types
Cut Flowers Flower borders and beds Wall-side Borders
City & Courtyard Gardens Coastal Cottage & Informal Garden Architectural Gravel Garden Patio & Container Plants
Pruning Tidy as leaves fade, remove seedheads if self-seeding not needed
Pests May be affected by allium leaf mining flies
Susceptible to onion white rot and downy mildews
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.