The waterweed has its origins in North America, but has now also become native to us. Its profuse growth in the local climate suggests it does well in large temperature swings. Where are your limits in this regard?
The waterweed feels most comfortable at temperatures of 15-24 °C
Large tolerance range
The waterweed has a large temperature tolerance. It can cope with temperatures close to zero and also with values above 20 °C. It is therefore not only a suitable aquarium plant, but can also grow permanently outside in the pond. Only the Argentine waterweed is more sensitive to cold and could freeze to death outside in winter.
tips
Argentine waterweed needs to be planted deeper to increase its chances of survival. Alternatively, a piece of it can overwinter in an aquarium and be placed back in the pond water in spring.
temperatures in winter
The lower limit is 4 °C. That is why the waterweed reliably survives even harsh winters deep in the pond, in zones that do not freeze over. Consequently, the pond should be at least 60 cm deep. In autumn, the shoots of the waterweed turn brown and sink to the bottom of the pond, but the plant reliably sprout again in winter.
temperatures in summer
Even if the waterweed survives cold water. She feels comfortable in a warm environment and only then grows visibly. Just don't let it get too warm for her.
- ideal temperature range is 15-24 °C
- The temperature should not permanently rise above 26 °C
The warmer the water, the more waterweed grows. This can go so far that it displaces other plants and therefore has to be fought.
temperatures in the aquarium
The aquarium is felt all year round with warm water. That's why the waterweed stays evergreen in it. However, since it can only withstand temperatures of around 28 °C for a short time, it is less suitable for tropical aquariums.
The large plant can run through the aquarium from bottom to top with its long shoots. It can be exposed to different temperatures in different water layers. Even if the individual values are acceptable to her, she is sensitive to these differences.
Maintain a constant temperature in the aquarium by using a tank floor heater while ensuring adequate water flow.