How to Prune warted barberry?
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering.

warted barberry · Berberis verruculosa
Grows in any soil except waterlogged. A sunny position will encourage fruiting
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering.