'Sulphurea' is a cormous perennial with narrow mid-green leaves and large sprays of tubular dark chrome-yellow flowers, with creamy-yellow throats, from summer to autumn
SynonymsCrocosmia pottsii 'Lady Bangor'
Crocosmia 'Golden Fleece' M. Wickenden
see moreCrocosmia × crocosmiiflora 'Sulphurea'
Crocosmia × crocosmiiflora 'Citronella' hort.
Crocosmia × crocosmiiflora 'George Davison'
Ultimate height0.5–1 metres
Time to ultimate height2–5 years
Ultimate spread0.1–0.5 metres
MoistureMoist but well–drained
pHAcid, Alkaline, Neutral
Colour & scent
- Full sun
- Partial shade
West–facing or East–facing or South–facing
- Native to the UK
- Clump forming
Crocosmia are deciduous cormous perennials with erect, sword-shaped leaves and branched spikes of showy, funnel-shaped flowers in summer
- Name status
How to grow
Plant 8-10cm deep in fertile, humus-rich, moist but well-drained and preferably sandy soil in full sun or partial shade; in colder areas plant somewhere with shelter from cold drying winds, such as near a wall, and protect in winter with a thick, dry, organic mulch; if clumps become congested, divide them in early spring. May be a nuisance in some gardens if not managed well
Propagate by division of established clumps in spring, just before new growth starts
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Prairie planting
- Low Maintenance
- Flower borders and beds
- Wall side borders
- Banks and slopes
- Cut flowers
No pruning required, except removal of dead leaves and flower stems before new growth starts in spring
May be susceptible to glasshouse red spider mite
Generally disease free
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.