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Crambe cordifolia
greater sea kale
Billowing clouds of tiny, white flowers float above huge rosettes of deeply cut dark green leaves in June and July. A...
9cm pot
available to order from autumn
3 × 9cm pots
available to order from autumn
1
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Plant description
Billowing clouds of tiny, white flowers float above huge rosettes of deeply cut dark green leaves in June and July. A favourite plant of Edwardian garden designer Gertrude Jekyll, this perennial looks magnificent at the back of a sunny border or as part of a cottage garden scheme. The tiny flowers, attractive to bees, are a perfect foil for large-flowered plants. The leaves smell strongly of cabbage and the plant needs space to spread out.
Eventual height & spread
Flowering period
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Plant features
Position
Full sun / light shade
Rate of growth
Average
Soil
Moderately fertile, moist, well-drained soil
Hardiness
Fully hardy
How to care for Crambe cordifolia:
Plant in fertile, well-drained soil in full sun, giving plenty of space as this is a large perennial. Water regularly in the first year to establish a strong root system, but avoid waterlogging. Once established, it tolerates dry spells much better. Cut back to ground level in autumn after the foliage dies back.
In spring, apply a 5-7cm (2-3in) mulch of well-rotted manure or compost around the base to conserve moisture and boost growth. The plant resents disturbance, so avoid moving it once settled. Remove any faded flower stems after blooming to keep it tidy, though the dried seed heads can be left for structure if desired.
In spring, apply a 5-7cm (2-3in) mulch of well-rotted manure or compost around the base to conserve moisture and boost growth. The plant resents disturbance, so avoid moving it once settled. Remove any faded flower stems after blooming to keep it tidy, though the dried seed heads can be left for structure if desired.
Please note:
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
