Nuphar lutea is an aquatic plant that thrives in still or slow-moving water. Ensure the rhizomes are submerged in water, typically between 20-100 cm deep, depending on the plant's maturity and desired effect.

Consistent water levels are crucial for healthy growth and flowering.

Pruning for Nuphar lutea primarily involves removing dead or yellowing leaves and spent flower stalks.

Cut these back to the water surface or just above the rhizome to maintain a tidy appearance and prevent decay in the pond. This also encourages new growth and flowering.

Propagation is primarily done through division of the rhizomes in early spring before new growth begins. Carefully separate the fleshy rhizomes, ensuring each piece has at least one bud.

Replant the divisions in suitable aquatic soil in pots, submerging them in the pond.

Repotting is usually necessary when the plant outgrows its container or becomes too dense. This is best done in early spring.

Use a large, heavy pot to prevent tipping and fill it with heavy loam or aquatic planting soil. Submerge the repotted plant in its pond habitat.