Elodea Canadensis
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What is Elodea Canadensis?
Elodea Canadensis and waterweed in general does not exactly have the best name now. The clogger of waterways. Unnecessary and troublesome. But is it really? Many people don't know how good waterweed can actually be in the pond. It is one of the biggest oxygen producers in pond water. It is also a formidable competitor to algae, as they both need the same nutrients. Clear water without an abundance of floating algae is within reach.
These aquatic plants are not native to the Netherlands but to North America. After first conquering England, by the early 20th century the plant could be found in just about all of Europe. Unfortunately, this species is now declining; the deterioration of general water quality in the Netherlands is to blame. By the way, not to be confused with Narrow Waterweed. This plant is (still) doing much better in our country.
Elodea Canadensis Properties
- Makes stems to more than 1 metre
- Edible for fish
- Native, hardy oxygen plant
- Excellent for ponds
- Appreciates nutrient-rich water
Frequently asked questions
What are the benefits for my pond?
As indicated, this plant is fine for the pond. Due to its rapid growth, it competes with algae, brings oxygen to the water and grows quickly. When planted in a pond basket, it will produce roots. The basket helps prevent proliferation.
For these aquatic plants, the same rule of thumb applies as for other oxygen plants. Applying 4-5 bunches of aquatic plants per m3 of pond water ensures the best results on clarity, competition with algae and oxygen production.
What does Elodea Canadensis look like?
Elodea Canadensis differs only slightly from Elodea Nuttallii. In fact, broad waterweed has bright green leaves, they are even slightly translucent. They are oblong leaves that can vary between 6 and 17 mm long and 1 to 4 mm wide. The entire plant is a submerged aquatic plant, only the flowers float on the surface. These flowers are often white or light purple in colour and are attached to the plant by thin stems. The petals have an average size of between 2 and 3 mm. Unlike other species of similar pond plants, these flowers also have only 4 or more petals.
How many oxygen plants do I need?
4 to 5 bunches of oxygen plants per 1,000 litres of water is recommended. This seems a lot, but this way you will achieve the best results: The water becomes clearer and there is minimal risk of the excessive growth of floating algae and filamentous algae by removing sufficient nutrients from the water.
Would you like to know exactly how many oxygen plants in pond needed based on the number of litres of water? Then use our handy Groves Calculator
Buy Elodea Canadensis?

Elodea Canadensis is for sale through The Pond Master's webshop. Here you can find beautiful bunches of high quality.