Oxygenating plants


The pond is the ideal aquatic element to decorate the garden and to enrich the external natural scenery. The pond, also known as a body of water, often hosts aquatic plants and fish, creating an environment that is very susceptible to the accumulation of debris and the formation of algae. The bad conditions of the aquatic mirror are noticed when the water becomes numb, gives off bad smells and presents dead fish and an excessive proliferation of algae. When it gets to this point, there isn’t much to do but replace and clean up the pond. If, on the other hand, the body of water is implemented for the first time, special aquatic plants can be used that have the ability to keep it clear and clean. These are the «oxygenating» plants,


The main characteristic of oxygenating plants is to absorb the substances dissolved in the water, that is the mineral salts and carbon dioxide, compounds that develop with sunlight and which nourish the weeds. When the body of water is completely devoid of mineral salts and carbon dioxide, the algae will no longer be able to proliferate in the water, ensuring that it is always clear and clean and above all makes the sun’s rays shine on the surface of the water. entire body of water. The penetration of light into the pond will favor the fontosynthetic capacity of aquatic plants and the vitality of the fish. The oxygenating plants they also make a notable contribution to the aesthetic rendering of the internal and external space, because a clear and clean body of water is perhaps the central element of the beauty of an aquatic garden.


Oxygenating plants are submerged species, i.e. plants that survive only at the bottom of the water. With varying shapes and sizes, these plants have very different cultural needs and in choosing the species it is necessary to consider the climatic condition of the area where the pond stands. There are, in fact, aquatic plants that tolerate harsh temperatures very well and others that are only suitable for warm or temperate climates. The oxygenating plants are planted in the pond only after having planted the other aquatic plants. After having prepared the bottom of the body of water, with garden soil and sand, the aquatic species are planted at five centimeters from the surface of the bottom, while the oxygenating plants should be placed at fifteen centimeters, because they will have to be totally covered by water. The water should be added only after having planted the oxygenating plants. After ten days the fish will also be added. The water for filling the pond can also be that which comes out of the tap at home. Even oxygenating plants, and in general all aquatic plants, must be fertilized like those areas. For species that live in water, however, specific fertilizers available in nurseries must be used. Alternatively, slow release granular fertilizers can be used. Oxygenating plants have a very rapid growth and for this reason they must be pruned frequently. The cut must be made underwater at a height of about ten centimeters. The oxygenating plants also have blooms. Generally, the inflorescences of these species are small and, like all the rest of the plant, have no ornamental importance. Although not beautiful, oxygenating plants have two important advantages: keeping the pond water clean and not being vulnerable to pests or diseases.

Oxygenating species

In nature there are several varieties of oxygenating plants. Among the best known are Miryophyllum Aquaticum, Elodea Densa, Ceratophyllum demersum and Cabomba aquatic. The first is native to America, it is easy to grow and prefers intense light and temperatures between twenty and twenty-four degrees. The second, always native to America, resists well even at low temperatures, but only for low periods. The plant produces white flowers and cannot tolerate excessive sun exposure. The third is a tropical species that prefers warm climates. Very extensive, this plant is also a refuge for fish. The last, the Cabomba aquatic, has the same characteristics as the previous species, but it also adapts to rigid temperatures.

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