How to Prune alpine bottlebrush?
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering. Hard pruning is tolerated when needed.

alpine bottlebrush · Callistemon sieberi
Also known as: river bottlebrush
Grow in full sun in moderately fertile, moist but well-drained, neutral or acidic soil
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering. Hard pruning is tolerated when needed.