How to prune nuphar polysepala

Spring through summer for dead leaf removal; early autumn for rhizome division. Sever dead leaf and flower stalks close to the rhizome base using clean aquatic scissors or pruners. To divide, carefully lift rhizome sections and replant portions with healthy growing tips in fresh aquatic substrate.

Dead growth removal as needed; division every 2–3 years. Rocky Mountain pond lily needs the same basic maintenance as other Nuphar species. Remove dead or decaying lily pads and spent flowers at the stem base to keep water clean and encourage new growth. Rhizomes can spread extensively; divide and thin every few years to control spread and rejuvenate the plant.

Sever dead leaf and flower stalks close to the rhizome base using clean aquatic scissors or pruners. To divide, carefully lift rhizome sections and replant portions with healthy growing tips in fresh aquatic substrate.