How to Prune viola 'Nellie Britton'?
Deadhead to prolong flowering. After flowering cut back vigorous plants to keep compact

viola 'Nellie Britton' · Viola 'Nellie Britton'
Grow in fertile, humus-rich, moist but well-drained soil in full sun or partial shade
Deadhead to prolong flowering. After flowering cut back vigorous plants to keep compact