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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
sweet pea 'Heathcliff'
Lathyrus can be annuals or herbaceous or evergreen perennials, mostly climbing, with pinnate leaves ending in a tendril, and showy pea-like flowers, fragrant in some species
'Heathcliff' is a vigorous annual climber with greyish foliage and heavily fragrant, dark violet-blue flowers in summer and early autumn
Toxicity Acute ingestion may cause mild stomach upset
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 Exposed or Sheltered
MoistureWell-drained, Moist but well-drained
SoilSand, Clay, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in a fertile, humus-rich, well-drained soil in full sun or partial shade. Incorporate organic matter into the soil before planting and feed with a balanced, liquid fertiliser once a month when in growth. Deadhead regularly to prolong flowering
Propagate by seed sown in-situ in mid-spring. Germination may be improved by pre-soaking or chipping before sowing
Suggested planting locations and garden types
Flower borders and beds
City & Courtyard Gardens Coastal Cottage & Informal Garden Patio & Container Plants
Pruning Remove after flowering
Pests May be attacked by aphids, slugs and snails
May be affected by powdery mildews
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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.