The genus Limnatemo consists of about twenty species of perennial and annual aquatic plants, originating in Asia, Europe and North America. The Nymphoides peltata has a fleshy stoloniferous root, shaped like a small bunch of bananas, from which 10-15 round leaves, sometimes heart-shaped, light green, with a lower reddish page depart, many of them remain completely submerged, while some, carried by a long petiole, they float on the surface of the water; in summer, from the heart of the leaves, numerous white flowers bloom, with five petals and a golden yellow center, which remain completely lifted by the water. Nymphoides cristatum has the edge of purple-red leaves; N. geminata has red-brown leaves and yellow, fringed flowers; Nymphoides indica has finely fringed white flowers; Nymphoides peltata, or limnantemo, is also present in Italy in nature, has leaves similar to water lilies and yellow flowers.
As for the exposure of this kind of aquatic plants, let's remember to place them in a low pond, in a small pond or in very slow waterways. The Limnantemo loves very bright locations, but not directly exposed to sunlight, especially in the hottest months of the year. In fact, direct exposure to sunlight could cause the leaves to dry out and the species to weaken, if not the consequent death. The Nymphoides peltata does not resist the cold, loves temperatures close to 18-20 ° C, therefore it is grown as an annual, or in winter it is placed in large tubs, in a tempered greenhouse or at home. It loves waters with high ph, quiet and warm.
The rhizomes of the Limnantemo plants must be placed in rich and sandy soil, taking care to bury all the roots, leaving the upper part protruding from the soil, and covering it with medium-grain sand; adding fertilizer for aquatic plants to the water in which this plant is grown will have a more abundant flowering.
As for watering, it is advisable to keep the soil in which they are always grown very moist. If the species is cultivated in a container and not directly in ponds or ponds it is necessary to change the water of the pot every 15-20 days.
To improve the development of the plant it is also possible to add specific fertilizer for aquatic plants. When fertilizing is usually carried out, the plant is able to show an abundant flowering.
The plants of nymphoides peltata produce numerous shoots along the petioles of the leaves, which can be detached and placed immediately at home; It is also possible to propagate these plants simply by placing whole leaves in water, in a few weeks they will root and develop an entire plant, anchoring itself to the ground.
If the agamic reproduction is certainly very easy and immediate, remember that it is also possible to sow small dark seeds, but the ease of propagation by cuttings or by division makes this method impractical.
Limnantemo - Nymphoides peltata: Pests and diseases
Generally these small Limnantemo plants are not attacked by pests or diseases.