Pruning guide · Perennial
Perennial sunflower: when and how to prune
Helianthus × multiflorus
Perennial sunflower is best pruned in February–March.
| Pruning months | February–March |
|---|---|
| Flowering | July–October |
| Good for bees, butterflies and birds | Yes, for bees, butterflies and birds |
| Native to Belgium | No, planted |
Perennial sunflower: when to prune it?
In late February or March, cut the dead stems down to just above the ground.
Perennial sunflower: how to prune it?
- Cut all old stems to 5–10 cm above the ground, before the new shoots appear.
- For a more compact plant, cut the shoots back by a third at the end of May. Flowering starts a little later, but the stems are sturdier.
- During flowering, remove faded flowers to stretch the season.
How much to cut, and how often?
- One pruning period a year: February–March.
What does it mean for wildlife?
- Perennial sunflower flowers in July–October, when it attracts bees and butterflies.
- If you only cut back in February–March, the old stems stand through the winter: insects overwinter in them and birds eat the seeds.
Nearby: related pruning guides
Plant profile: Perennial sunflower · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.