Whenever there is talk of algal blooms, there is rarely enthusiasm. Because the green "stuff" has multiplied explosively in the garden pond. If it's not stopped quickly, other plants and animals will perish. The hornwort, however, is a strong opponent, which in turn deprives the algae growth of the breeding ground.
Hornwort not only looks pretty, it also works against algae
Causes of algal blooms
In a nutshell: the current living conditions for algae are good, too good! They use this immediately and extensively to multiply at breakneck speed. In addition to warmth and plenty of sunshine, an oversupply of phosphate is also responsible for this.
Phosphate is an important element for all plants. Therefore it must be present in the pond. However, it is primarily the algae that benefit from a large quantity. They can absorb and utilize phosphate faster than most pond plants.
Pond plants against algae
However, there are some pond plants that also have a fast growth rate. This enables them to bind phosphate from the water before it can be used in large quantities by algae to reproduce. They can therefore be used specifically as biological algae control agents. By the way, not only when the algae bloom is already there, but already preventively. These plants are recommended:
- pike weed
- duckweed
- frog bite
- chickweed
Pike weed against algae is a thriving solution, but it requires a sunny spot at the edge of the pond. If it is not available, the chickweed is happy to step in as an alternative.
Useful chickweed
In order for the hornwort to slow down the algae's urge to multiply, it must feel comfortable in the pond itself. This is not difficult, because this plant is undemanding.
It is also known that hornwort and waterweed do not get along very well. Since the waterweed tends to multiply rapidly, the presence of a toadstool can also push back this plant in addition to algae.
How to use hornwort
Hornwort is considered easy to care for and robust. You don't have to worry too much about the location as it thrives in both shade and sun. You can plant chickweed up to a depth of 1.5 m. That is why it is also ideal for deep ponds.
Its planting is not a big challenge. Hornwort has no roots and is simply placed on the bottom of the pond.
tips
The hornwort, often also called horn leaf, can be easily multiplied by division if necessary.