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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
dwarf crested iris lady's calamus
Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer
I. cristata is a rhizomatous perennial to 10cm, forming a mat of fans of bright green leaves, with stemless light violet-blue flowers 3-4cm in width, with a conspicuous white patch and narrow orange crest on each fall
Habit Mat forming
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 East-facing or West-facing
Exposure Exposed or Sheltered
MoistureMoist but well-drained, Poorly-drained
pHAcid, Alkaline, Neutral
Up to 10 cm
Time to ultimate height
Grow in moist, humus-rich soil in full sun or partial shade. Or grow in a container under glass, keep just moist during dormancy
Propagate by division of rhizomes from midsummer to early autumn
Suggested planting locations and garden types
Flower borders and beds Wall-side Borders
City & Courtyard Gardens Coastal Cottage & Informal Garden Rock Garden Patio & Container Plants
Pruning Remove any dying foliage in autumn, old flower stems can be cut down after flowering
Pests May be attacked by slugs and snails
May be subject to a virus
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.