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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
bullwort common bishop's weed
false bishop's weed herb William
Ammi can be annuals or biennials, upright or spreading, with fern-like, pinnately divided leaves and large, branched umbels of small creamy-white flowers in summer
Ammi majus is an upright annual with 2 to 3-pinnate leaves and compound umbels of small white flowers in summer
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 Sheltered or Exposed
SoilLoam, Sand, Chalk
pHNeutral, Acid, Alkaline
Time to ultimate height
Grow in any well-drained soil in full sun or partial shade, provide support when seedlings reach 7-10cm (3-4in) high
Propagate by seed sown in situ in spring
Suggested planting locations and garden types
Flower borders and beds
Cottage & Informal Garden Wildflower meadow
Pruning Cut back after flowering
Pests Generally pest free
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
was £2.29 Buy from £1.83 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.