Exotics

Since the first project in Portugal, we have exclusively foreseen indigenous plants for biological pools. And we have good reasons for this choice. The diversity of native aquatic plants in Portugal is very large and thus offers a wide range of species suitable for use. And we make no exceptions, we do not authorize the addition of any plant species to the biological pool ecosystem without prior authorization from the designers. Exclusively aquatic plants grown  in the purpose-built nursery are planted, a plant nursery producing for biological pools.
Regarding aquatic plants, we are aware that there are major threats, and that is why we help focus the month of May on the threaten by invasive species. Between the 4th and 12th of May, the Invasive Species Week will take place, aiming to raise awareness about biological invasions across the Iberian Peninsula & Islands. More information on the page about invasives and the INVASAQUA project.
Invasive exotic plants pose a great danger to natural ecosystems worldwide and annually cause huge economic damage, both to terrestrial and aquatic ecosystems, as shown with the picture of the invasive exotic water hyacinth plant (Eichhornia crassipes).
Unfortunately, some  species invade nature by leaving gardens, parks, ornamental gardens or artificial lakes. One more reason to emphasize the warning, why always avoid exotic species, combat them where they are found and focus on the use of native flora and fauna. For a world free of invasive species!