Many of the plants in a piscina biológica® look beautiful all year round because they are vivacious plants. Many of them turn green even in winter, at least in the south of the country. In cold, snowy lands, in winter there is another situation. The plants look brown, but grow back in the spring. Few species, such as water lilies, are hibernating beneath the surface of water, with no visible leaves, but in spring they again throw floating leaves and flowers on the surface of water.
We never have to replace the plants, because the plants are all alive, they grow again in the spring and, in addition, they create new generations.