Nuphar microphylla thrives in consistently moist to waterlogged conditions. Ensure the soil remains saturated, especially during the growing season. In its natural habitat, it's found in shallow, still waters.

Avoid letting the substrate dry out, which can stress the plant.

Pruning is minimal for Nuphar microphylla. Remove any yellowing or dead leaves and flower stalks at the water's surface to maintain aesthetic appeal and prevent decomposition.

This also helps direct energy towards healthy growth.

Propagation is primarily through division of rhizomes in spring. Carefully separate healthy sections of the rhizome, ensuring each piece has at least one growth bud.

Replant immediately in suitable substrate in shallow water.

Repotting is generally needed every 2-3 years, or when the plant becomes pot-bound. Use a large, sturdy container with aquatic planting soil. Ensure the rhizome is just below the surface.

Repotting is best done in early spring before active growth begins.