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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.
Other common names
Crocosmia 'Donegal' Montbretia × crocosmiiflora
Crocosmia are deciduous cormous perennials with erect, sword-shaped leaves and branched spikes of showy, funnel-shaped flowers in summer
C. × crocosmiiflora is a vigorous, variable hybrid, a cormous herbaceous perennial, typically up to 60cm high, with pale green leaves and slightly arching spikes of orange flowers, 3-5cm across, 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 East-facing or West-facing
Exposure Exposed or Sheltered
MoistureMoist but well-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
It is an invasive non-native plant in the United Kingdom, and since 2010 it has been listed in Schedule 9 of The Wildlife and Countryside Act 1981, so that under Section 14 it is illegal to plant or otherwise cause it to grow in the wild. In gardens, plant 8-10cm deep in spring, in fertile, retentive, humus-rich, moist but well-drained and preferably sandy soil in full sun or partial shade; if clumps become congested, divide them in early spring
Propagate by division of established clumps in spring, just before new growth starts
Suggested planting locations and garden types
Cut Flowers Low Maintenance Banks and Slopes Flower borders and beds Wall-side Borders
Coastal Cottage & Informal Garden Prairie Planting
Pruning No pruning required, except removal of dead leaves and flower stems before new growth starts in spring
Pests May be affected by glasshouse red spider mite
Generally disease free
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.