The Best Pond Plants for Algae Control (UK)

The Best Plants for Controlling Pond Algae

We’ll look at the best plants you can add to your pond to help remove excess waste and reduce algae growth. These plants play a crucial role in improving water quality and creating a healthier ecosystem for your pond inhabitants. By strategically choosing the right plants, you can effectively combat issues like blanket weed and green water. Let’s dive into the different categories of plants and their benefits.

Marginal Plants

Marginal plants are excellent at reducing algae by absorbing nitrates and phosphates from the water. Two types of marginal plants stand out in their ability to combat algae growth:

  • Typha (Reed): Typha, commonly known as a reed, features distinctive bull rushes and possesses a rhizome. It is known for its efficiency in removing nutrients from the water, essentially starving the algae by depriving it of its food source. You can either plant Typha directly in the pond or create a separate reed bed for natural filtration.
  • Iris: Iris is another fast-growing plant that effectively absorbs nitrates and phosphates from the pond. With its vibrant flowers, iris adds aesthetic appeal while improving overall water quality. Like typha, it can be planted marginally or in a separate bed to enhance nutrient removal.

Floating Plants

Floating plants provide the dual benefit of covering the pond’s surface, reducing sunlight penetration, and absorbing nutrients directly from the water. Consider incorporating the following floating plants:

  • Water Chestnuts, Water Soldier, Water Lettuce, and Frog Bit: These fast-growing plants float on the water’s surface, preventing excessive light from reaching the depths. By absorbing nutrients, they limit the availability of food for algae, thus curbing their growth. Additionally, floating plants offer fish a sense of security by providing surface cover.
  • Water Lilies: While their roots sit underwater, water lilies’ leaves provide shade to the pond’s surface. This shading effect limits the amount of light entering the water, thereby inhibiting algae growth. Water lilies also enhance the pond’s visual appeal with their colourful flowers.


Oxygenators are submerged plants that play multiple roles in a pond ecosystem. They provide shelter and food for various organisms and significantly contribute to algae control. These fast-growing plants consume nutrients and create dense foliage that helps shade the pond. Consider incorporating different types of oxygenators suitable for your region:

  • Elodea, Egeria, and Ceratophyllum: These popular pond oxygenators thrive from the pond bottom towards the surface. Their dense foliage absorbs excess nutrients and limits light penetration, making them effective in reducing algae growth.

Final Word

By carefully selecting and incorporating the right plants into your pond, you can create a balanced ecosystem that mitigates algae growth and improves water quality. Marginal plants, floating plants, and oxygenators each offer unique benefits in reducing excess waste, absorbing nutrients, and providing shade. Implementing a combination of these plants will help maintain a clear and healthy pond environment to keep algae at bay and enhance your pond’s beauty.

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