Photo: Uleli, CC BY 3.0 · source
Pruning guide · Perennial
Giant scabious: when and how to prune
Cephalaria gigantea
Giant scabious is best pruned in August–September.
| Pruning months | August–September |
|---|---|
| Flowering | June–August |
| Good for bees, butterflies and birds | Yes, for bees and butterflies |
| Native to Belgium | No, planted |
Giant scabious: when to prune it?
After flowering, in August–September, cut the flower stems and old leaves back to just above the ground.
Giant scabious: how to prune it?
- During flowering, cut spent heads back to the next side shoot.
- After the last flowers, cut all stems down to the ground; a fresh clump of leaves often follows.
- To collect seed, leave a few stems until the seed heads are brown and dry.
How much to cut, and how often?
- One pruning period a year: August–September.
What does it mean for wildlife?
- Giant scabious flowers in June–August, when it attracts bees and butterflies.
- 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: If you leave all the seed heads, it may self-seed in a warm spot.
Nearby: related pruning guides
Plant profile: Giant scabious · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.