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

purple gromwell · Glandora diffusa
Also known as: gentian gromwell
Grow in well-drained, acidic to neutral soil in full sun
Usually little pruning is needed. Lightly shape if necessary, removing dead, damaged or diseased shoots. Prune after flowering.