When to prune wisteria
Summer (shorten whips) and late winter (spur back). Twice-yearly pruning creates flowering spurs and controls size.
| Type | vine |
|---|---|
| Blooms on | old wood (spurs) |
| Bloom season | spring |
| When to prune | Summer (shorten whips) and late winter (spur back) |
| Stop | No heavy pruning in the 6–8 weeks before your first fall frost |
Also
Asian wisterias are invasive in many states.
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Sources
- University of Georgia Extension: B961: Pruning Ornamental Plants in the Landscape
- Clemson Cooperative Extension HGIC: Pruning Shrubs
Summarized in our own words from public extension publications.
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