They are the yoke of every garden pond: algae. Green foamy carpets cover the water surface and make the pond cloudy. In the worst case, the water can tip over. A natural and effective long-term solution are pond plants against algae.
Pond plants are an effective weapon against algae
No garden pond without algae growth
Algae aren't inherently bad, of course. Algae grow in every garden pond and usually do not pose any risk either to the appearance of the water oasis or to the biological balance. The most important garden pond algae are:
- blue and green algae
- thread algae
Usually unproblematic: blue and green algae
Tiny blue and green algae, for example, are present in all water, even in chlorinated pools. When stocks are limited, they don't even cloud the water. In warm conditions and nutrient-rich water, however, they can multiply explosively and form an unsightly slime carpet on the water surface.
thread algae
The pond water can be completely clouded by filamentous algae when algae blooms occur. This is particularly problematic for ponds with fish stocks, because the algae that die and sink after the bloom can cause the animals to suffocate due to the associated lack of oxygen.
What to do against algae?
In order to keep the formation of algae as low as possible from the outset, a constantly low nutrient content in the pond water must be ensured. This deprives the algae of their livelihood. On the one hand, it is advisable to regularly fish off nourishing algae deposits on the water surface and regularly cut back the marsh plants.
You can take action against algae very effectively, naturally and free of charge by letting the pond plants work for you. Species rooted deep in the pond bottom draw nutrients from the soil and also from the water, leaving less for the algae. On the other hand, they give off oxygen, which also keeps the algae away.
plants against algae
Basically you should put a lot of plants in your pond so that they absorb the water nutrient content. Heavy consumers are of course best suited.
easy care
- Horn leaf: The horn leaf, gently swaying in the water like a soft fir branch, has the ability to absorb many nutrients directly from the water.
- Cattail: The cattail is not only an imposing and very classic pond edge dweller. It is also a very effective algae preventer due to its great hunger for nutrients. In addition, it is easy to care for and not too vigorous.
- Water feather: It reproduces independently at the bottom of the pond and enchants with its delicate white flowers on the water surface
flower beauties
- Water lilies: With their beautiful, large flowers, they are the classic of pond romance. They help against algae insofar as they shade the lower water layers with their flat, decorative floating leaves and make growth conditions more difficult for the algae.
- Frog bite: With its small, round floating leaves, it also shades the water surface. Its blossoms on the water delight in snow-white with a yellow heart
- Swamp iris: With its size and its ornate, yolk-yellow flowers, the swamp iris makes a very pretty picture in the garden pond. It is also very effective against algae.