Troubleshooting
Crimson Water Lily problems — and how to fix them
Crimson Water Lily (Nymphaea 'Laydekeri Fulgens') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Crown rot in cold waterlogged soil
In excessively cold, stagnant, or shallow ponds that freeze solid, the rhizome can rot over winter. In very shallow water features in zone 4–5, sink the basket to the deepest part of the pond before the first frost, or move indoors in a bucket of damp soil.
Water lily beetle larvae
The larvae of Galerucella nymphaeae skeletonise pads from midsummer onward, leaving a brown, papery texture. Remove by hand or submerge pads to dislodge larvae; avoid chemical treatments in ponds with fish.
Fading flower colour in very hot water
In shallow ponds in hot climates, water temperatures above 30°C can cause flower colour to fade from deep crimson to pale pink. Ensure adequate depth (at least 30 cm) to buffer water temperature.
Prevent crimson water lily problems before they start
Most crimson water lily issues are care-mismatch, not bad luck. Dial in the basics:
Looking for crimson water lily in general rather than its problems? Read the full crimson water lily care guide — light, water, soil and feeding.
Crimson Water Lily problems — FAQ
Why is my crimson water lily crown rot in cold waterlogged soil?
In excessively cold, stagnant, or shallow ponds that freeze solid, the rhizome can rot over winter. In very shallow water features in zone 4–5, sink the basket to the deepest part of the pond before the first frost, or move indoors in a bucket of damp soil.
Why is my crimson water lily water lily beetle larvae?
The larvae of Galerucella nymphaeae skeletonise pads from midsummer onward, leaving a brown, papery texture. Remove by hand or submerge pads to dislodge larvae; avoid chemical treatments in ponds with fish.
Why is my crimson water lily fading flower colour in very hot water?
In shallow ponds in hot climates, water temperatures above 30°C can cause flower colour to fade from deep crimson to pale pink. Ensure adequate depth (at least 30 cm) to buffer water temperature.