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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.
© RHS 1993
the RHS today and get 12 months for the price of 9
Other common names
cardinal flower bog sage
hog's physic Indian pink red bay scarlet lobelia slinkweed water gladiole
Lobelia fulgens Lobelia splendens
Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles
L. cardinalis is an erect, clump-forming herbaceous perennial to 90cm in height, with rather glossy bright green oblong leaves and brilliant scarlet, two-lipped flowers 5cm in length in terminal spikes
Toxicity Ingestion may cause severe discomfort
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
pHNeutral, Acid, Alkaline
Time to ultimate height
Grow in deep, fertile, reliably moist soil in full sun or partial shade
Propagate by seed sown in gentle heat as soon as ripe, or by bud cuttings in late summer
Suggested planting locations and garden types
Flower borders and beds
Cottage & Informal Garden
Pruning Cut back after flowering
Pests May be damaged by slugs and snails
A leaf spot may be a problem
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Buy from £9.99 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.
Join the RHS today and get 12 months for the price of 9