How to Prune Viola 'Buttercup'?
Deadhead to prolong flowering. After flowering, cut back vigorous plants to maintain shape

Viola 'Buttercup' · Viola 'Buttercup'
Grow in fertile, humus-rich, moist but well-drained soil. Prefers partial shade
Deadhead to prolong flowering. After flowering, cut back vigorous plants to maintain shape