Photo: Rasbak, CC BY-SA 3.0 · source
Pruning guide · Perennial
Greater sea kale: when and how to prune
Crambe cordifolia
Greater sea kale is best pruned in July–August and November.
| Pruning months | July–August and November |
|---|---|
| Flowering | June–July |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | No, planted |
Greater sea kale: when to prune it?
After flowering, in July–August, cut off the flowering stems; in November clear away the dead leaves.
What else to prune in those months? July · August · November
Greater sea kale: how to prune it?
- Cut the faded flowering stem off at the base.
- The leaves often partly die back after flowering: remove yellowed and nibbled leaves.
- In November clear away the dead leaves, so slugs have fewer hiding places.
How much to cut, and how often?
- There are 2 pruning periods a year: July–August and November. You don’t have to prune in every one.
What does it mean for wildlife?
- Greater sea kale flowers in June–July, when it attracts bees.
- If pruning falls during flowering, wait until it is over or leave part of the plant to flower, so bees and butterflies still benefit.
Caution: After flowering there is often a gap in the border: put late-flowering plants in front of or beside it.
Nearby: related pruning guides
Plant profile: Greater sea kale · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.