Crambe cordifolia: complete guide

Overview

Crambe cordifolia, also called Colewort or Giant sea kale, is a dramatic perennial from the Brassicaceae family. The plant forms enormous heart-shaped leaves that can exceed 60 cm in size.

Appearance

Gigantic green leaves with deep veins. Tall flower spikes with thousands of tiny white flowers.

Location

Full sun to partial shade. Plant reaches 1.5 to 2 meters when flowering.

Soil

Well-draining soil essential. Plant tolerates acidic to alkaline pH.

Watering

Established plant drought-tolerant thanks to deep root systems.

Pruning

Remove spent flowers after blooming. Leaves can remain until autumn.

Maintenance

Minimal. Plant itself prevents weeds through large leaves.

Winter

Winter hardiness to minus 15 degrees. Northern regions may need protection.

Combinations

Standing focal point in borders. Combine with grasses and smaller foliage.

Conclusion

Spectacular plant for large gardens. Garden centers. Visit gardenworld.app for large garden designs.