Photo: Fir0002, GFDL 1.2 · source
Pruning guide · Herbaceous plant
Sunflower: when and how to prune
Helianthus annuus
Sunflower is best pruned in November.
| Pruning months | November |
|---|---|
| Flowering | July–September |
| Native to Belgium | No, planted |
Sunflower: when to prune it?
No pruning is needed. Clear the dead stems in November, or leave them standing until spring.
What else to prune in those months? November
Sunflower: how to prune it?
- After flowering, let the seed heads ripen on the plant: tits and goldfinches will empty them.
- On branching varieties, cut flowers for the vase regularly during flowering: new ones will follow.
- Cut the dead stems in November or leave them until spring; then put them on a brush pile for insects.
- Do not pull out the roots: they rot down in the soil and loosen it.
How much to cut, and how often?
- One pruning period a year: November.
What does it mean for wildlife?
- Don’t cut more than you need to: what stays standing gives insects and birds food and shelter.
Nearby: related pruning guides
This guide is compiled from the Bladwijzer plant profile and pruning calendar.