Yellow Dwarf Water Lily | Nymphaea 'Pygmaea Helvola'A prolifically flowering dwarf waterlily variety producing a host of tiny star shaped yellow lilies Smallest flowers of any hardy waterlily ideal for container ponds and water features Flowers from June to September Winner of the RHS Award of Garden Merit Floating plants provide shade and shelter for fish as well as protecting them from predators like herons. Also reduces the growth of algae. Grow in full sun and still water, away from fountains and