Pruning guide
How to prune helianthus salicifolius
More helianthus salicifolius care
Pruning helianthus salicifolius — FAQ
When should I prune helianthus salicifolius?
Cut back in early summer; deadhead in autumn; hard cut-back in late autumn. In early summer, reduce stem height by up to one-third to improve sturdiness. After flowering, cut all stems to the base. Use sharp loppers or secateurs given the woody stems.
How often does helianthus salicifolius need pruning?
Height reduction once in early summer; full cut-back once annually in autumn. Helianthus salicifolius (willow-leaved sunflower) is grown as much for its fine foliage as its late flowers. Cut stems back by a third in early summer to reduce its considerable height and prevent flopping. Deadhead once blooms fade. Cut all stems to the ground in autumn. Divide congested clumps every 3 years.
How do you prune helianthus salicifolius?
In early summer, reduce stem height by up to one-third to improve sturdiness. After flowering, cut all stems to the base. Use sharp loppers or secateurs given the woody stems.