Overview
Dierama grandiflorum is a clump-forming herbaceous perennial in the genus Dierama, part of the Iridaceae family, with evergreen foliage. Dierama grandiflorum grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include city and courtyard gardens, coastal, cottage and informal garden, gravel garden, prairie planting and flower borders and beds.
About
Dierama grandiflorum is a perennial geophyte that is part of the Iridaceae family. The species is endemic to South Africa and occurs in the Eastern Cape. The plant has a range of 3 444 km2 and occurs from Graaff-Reinet to Somerset East. The species is threatened by the declining quality of its habitat. Grow it in full sun and loam soil. In UK gardens it is hardy through an average UK winter (RHS H4). It works well for city and courtyard gardens, coastal, cottage and informal garden, gravel garden, prairie planting and flower borders and beds. It tolerates neutral soils, well-drained conditions and south-facing aspects. Plant at appropriate depth in well-drained soil.
Wikipedia contributors, CC BY-SA 4.0 — Dierama grandiflorum
Growing conditions
Best soil and position for Dierama
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Dierama grandiflorum size, habit and characteristics
- Plant type
- Herbaceous Perennial, Bulbs
- Habit
- Clump-forming
- Foliage
- Evergreen
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Gravel garden, Prairie planting, Flower borders and beds
Care notes
Pruning and caring for Dierama grandiflorum
- Propagation
- Seed, Division
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Dierama grandiflorum?
Dierama grandiflorum prefers full sun. It suits sheltered positions.
What soil does Dierama grandiflorum need?
Dierama grandiflorum grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Dierama grandiflorum hardy in the UK?
Dierama grandiflorum has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.
How do I propagate Dierama grandiflorum?
Seed, Division.
More in the Dierama genus
- Dierama pulcherrimum
- Dierama 'Candy Stripe'
- Dierama 'Hermia'
- Dierama 'Kilmurry White'wandflower 'Kilmurry White'