How to Prune Hypericum × dummeri 'Peter Dummer'?
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering.

Hypericum × dummeri 'Peter Dummer' · Hypericum × dummeri 'Peter Dummer'
Grow in moderately fertile to poor, moist but well-drained soil in sun or partial shade.
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering.