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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
stinking iris blue seggin
gladden gladdon gladwin gladwyn roast beef plant scarlet-seeded iris stinking gladwin stinking gladwyn
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. foetidissima is an evergreen perennial to 80cm, with glossy rich green leaves and small, yellow-tinged, dull purple flowers followed by large pods opening to show bright orange-red seeds, which persist into winter
Europe, N Africa
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 North-facing or East-facing or South-facing or West-facing
Exposure Exposed or Sheltered
MoistureWell-drained, Moist but well-drained
SoilClay, Chalk, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow in well-drained, neutral to slightly acid loam but will tolerate most soils in full sun, partial shade or shade
Propagate by seed sown in pots in a cold frame in autumn or spring. Propagate by division of rhizomes from midsummer to early autumn
Suggested planting locations and garden types
Flower borders and beds Low Maintenance Underplanting of Roses and Shrubs
Cottage & Informal Garden Wildlife Gardens
Pruning Remove any dying foliage in autumn
Pests Prone to slugs, snails and thrips
May be affected by grey moulds
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.