Frog bite - Hydrocharis morsus - ranae - Hydrocharis morsus-ranae

Frog bite - Hydrocharis morsus - ranae - Hydrocharis morsus-ranae

We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.


Hydrocharis morsus - ranae, commonly known as a frog bite, is a perennial aquatic plant, native to central and southern Europe and Asia. It consists of a small rosette of heart-shaped leaves, 4-5 cm in diameter, glossy and waxy; the small plant floats completely, both the root apparatus and the leaves, with the long petioles completely spread out on the surface of the water; the underside of the leaves is covered with a thick spongy tissue, which helps the plant float; in summer it produces small white flowers, the male and female flowers are found on different plants. The plant widens by means of stolons, giving rise to new seedlings. In Italian waterways and wetlands it is now in danger of extinction.
It is now very difficult to find this kind of aquatic plant in the spontaneous state on the Italian territory, but it is rather widespread as a variety cultivated for the decorative character of its spring or summer flowers.


To have the best possible growth for Hydrocharis morsus - ranae, it is good to put the specimens of a frog bite in a sunny position, in a water garden with calm waters; if the water should be shallow, the plant will naturally tend to anchor the roots in the ground.
These plants fear the cold and generally in autumn produce small swollen shoots, which fall on the bottom, where they will spend the winter, to return to float in the spring. If you intend to keep a small plant from one year to the other, place it in a sheltered place, in a container full of water, away from frost. If it is not possible to transport the frog bite plants to a protected place, it will be necessary to provide specific protections and covers to prevent the Hydrocharis morsus - ranae from being sheltered from the colder temperatures.


The specimens belonging to this variety do not have soil problems, being floating aquatic plants, in general they prefer neutral ph waters; to place the new plants at home it is sufficient to let them float in the body of water where they are to be inserted.
These plants, being an aquatic variety, can survive only if they are immersed directly in water and anchor to the ground, in the case where the height of the water is shallow.


The multiplication of frog bite specimens to obtain new seedlings, usually occurs with the technique of plant division in spring, to be placed directly in the place where they are to be cultivated to allow their correct development. It is also possible to proceed with sowing, but this leads to fewer results and is much more difficult to implement.

Frog bite - Hydrocharis morsus - ranae: Pests and diseases

in general these plants are quite resistant and are not affected by pests or diseases, but need a well-balanced ecosystem to develop at their best. It is possible, in some particular cases given by particular environmental conditions, to notice the presence of aphids on the foliage; in this situation it is good to avoid using chemicals that could damage the ecosystem and simply proceed with vaporization of the leaves with water.