How to Prune waterlily 'Hermine'?
Deadhead and remove yellow leaves regularly

waterlily 'Hermine' · Nymphaea 'Hermine'
Grow in undisturbed water in full sun. Plant in baskets in loamy soil with crowns just below soil surface and covered with pea shingle. Position the basket so it is covered by 15-25cm of water and as the plants establish, lower the basket to twice the initial depth. Feed plants throughout the growing season; see waterlily cultivation for further information
Deadhead and remove yellow leaves regularly