The nenufero is a perennial aquatic plant widespread in most of the temperate areas of the globe; the genus nuphar includes only one species. This plant is found in nature in small lakes or in ponds with rather calm waters, where it forms large colonies. It has large leaves, with a diameter close to 25-30 cm, carried by long rigid, erect petioles, which keep the leaf page above the water, sometimes even submerged and often floating; they have an intense green color and a round or heart shape, with a wavy edge; near the leaves in summer long stems also carry large single flowers, almost spherical, golden yellow, which open only partially, maintaining the particular shape of a ball; the flowers give way to large woody fruits, which contain numerous seeds. The fruit is often used dried in flower arrangements. The stems connect flowers and leaves to the spongy, rhizomatous roots that sink into the ground, widening from year to year. The nuphar luteum with the arrival of the cold lose the aerial part, which will respond to the arrival of the warm spring climate.
The yellow water lily, called precisely nenufero or Nuphar luteum, is a species that prefers sunny, or in any case very bright, positions, but also adapts easily to other environments; moreover, it does not fear the cold, since the rhizomes during the winter are in a period of dormancy.
The nuphar luteum grow without problems in any soil, the fleshy rhizomes sink into the mud on the bottom of even relatively deep ponds, as the stems grow up to 150-180 cm in height. Then plant these plants both on the banks and in the middle of our water gardens. It can also be cultivated in small ponds or water gardens.
The multiplication of the yellow water lily occurs by seed, using fresh seeds, which must be sown in a mixture of sand and peat in equal parts, in a container that must be kept submerged until complete seed germination; the new plants are planted the following spring. The fleshy rhizomes can be divided at the beginning of spring, the portions practiced are placed directly at home.
Pests and diseases
As for pests and diseases, the nenufer is a species that is not frequently attacked and does not present particular problems like all varieties of aquatic plants.
Nenufero - Nuphar luteum: Curiosity
A curiosity concerning the plant is the ability of the leaves to cover really large surfaces of ponds and ponds. When this happens, oxygenation of the water is often difficult. Furthermore, a further curious note is the microcosm that populates the lower page of the leaves of this particular water lily. These are tiny insects, aquatic animals that look for food and nutrients on the leaves to feed on.
The plant also has calming, aphrodisiac and anxiolytic properties.
In the homeopathic context it is used for the treatment of intestinal catarrh and headache to alleviate the symptoms.