Nuphar is a genus of perennial aquatic plants in the water-lily family, native to cool temperate and subarctic Northern Hemisphere ponds, lakes and slow rivers. Grow them submerged in still or slow water, with rhizomes planted in mud and deep enough to keep the leaves floating.
Family
Nymphaeaceae (Water-lily family)
Grows as
Aquatic
Light
Full sun, Part shade
Water
Keep the root system submerged in pond water or mud at all times.
Soil
Heavy mud or loam at the bottom of a pond, rich for N. lutea and poor for N. pumila.
Temperature
Hardy in cold winters; survives freezing if the rhizome stays under water.
How easy
Easy
Safety
Toxic
About
Nuphar is a genus of aquatic plants in the family Nymphaeaceae, with a temperate to subarctic Northern Hemisphere distribution. Common names include water-lily (Eurasian species; shared with many other genera in the same family), pond-lily, alligator-bonnet or bonnet lily, and spatterdock (North American species).
Where it grows
Nuphar species occur in ponds, lakes, and slow-moving rivers, growing in water up to 5 metres (16 feet) deep; different species are variously adapted either to nutrient-rich waters (e.g. N. lutea) or nutrient-poor waters (e.g. N. pumila).
Uses
Some species have been used by indigenous peoples. Young shoots and leaves sometimes were cooked but might be too bitter to eat. Whether the roots may be eaten, as is widely reported, is open to doubt; some sources claim that they are too bitter, too full of tannin, or simply too poisonous to eat unsoaked, except when treated for so long that they are not viable as a famine food. All sources however, agree that ripe seeds may be popped or variously used in cookery. They then are pleasant and nutritious, but require a lot of work to harvest and strip from the fruit capsule. To some extent this may be circumvented rotting the fruit under water for three weeks or more, after which removing the seeds is easier. The rotting material however, is very unpleasant to deal with. The flower petals are said to be used in making tea, but it is not clear whether that refers to the petals proper, or to the larger and more conspicuous sepals. The leaves of some species are large enough to be of use in wrapping food, for example in cooking.
Text excerpted from the Wikipedia article Nuphar by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.