How much sunlight does a water lily need to bloom?
Most hybrids require six hours or more of direct sunlight to flower. Afternoon sun is better than morning sun since it is more intense. Sun all day long is best if possible. More sun means more flowers and leaves. There are a few varieties of water lilies that flower in less sunlight than six hours, but none will flower in less than four hours. The plant will still produce foliage, just no flower buds. Flowering is very dependent upon adequate fertilization.
