Pruning guide
How to prune streambank lupine
Best time
After bloom in early summer; annual cut in late autumn
How often
Deadhead during bloom; cut back once annually
Technique
Cut spent flower spikes back to a leaf node. In late summer reduce stems by one-third; in autumn cut to 3-4 inches above ground.
More streambank lupine care
Pruning streambank lupine — FAQ
When should I prune streambank lupine?
After bloom in early summer; annual cut in late autumn. Cut spent flower spikes back to a leaf node. In late summer reduce stems by one-third; in autumn cut to 3-4 inches above ground.
How often does streambank lupine need pruning?
Deadhead during bloom; cut back once annually. Streambank Lupine is a perennial native to Pacific Northwest riparian areas. Remove spent flower spikes after bloom to encourage a second flush and prevent excessive seeding. Cut stems back by one-third in late summer. In autumn, trim to a few inches above ground. Overall pruning is light — mainly deadheading and an annual cut.
How do you prune streambank lupine?
Cut spent flower spikes back to a leaf node. In late summer reduce stems by one-third; in autumn cut to 3-4 inches above ground.