Water-purifying plants

Filter plants purify the water by absorbing nutrients that would otherwise feed algae. Combine tall and low-growing varieties: tall plants purify the water through their roots, while low-growing varieties remove nutrients from the surface. This keeps your pond clear and free of algae.

Always use Pond substrate instead of lava rock or gravel. Substrate is fine and porous, allowing roots to grow well and beneficial bacteria to attach themselves. Lava rock and gravel are too coarse, do not retain nutrients, and often actually cause poor plant growth and algae.

Showing all 15 results

Advantage

Anti-Algae Plants 2–3 m²

• 24 plants for 2–3 m²
• Controls and prevents thread algae
• Placement: 1–20 cm

In stock

Advantage

Pond Edge Plants 2–3 m²

• 45 plants for 2–3 m²
• Removes nitrite and prevents algae
• Depth: 1–10 cm

In stock

Helophytes Plants 4–7 m²

• 105 plants for 4–7 m²
• Removes nitrite and prevents algae
• Placement: 1–20 cm

189,95

In stock

Native Filter Plant Package (2–3 m²)

• 69 plants for 2–3 m²
• Water purification and algae control
• Depth: 1–20 cm

199,95

In stock

Native Filter Plant Package (4–7 m²)

• 175 plants for 4–7 m²
• Water purification and algae control
• Depth: 1–20 cm

449,95

In stock

Heliophytes Plants 8–12 m²

• 180 plants for 8–12 m²
• Removes nitrite and prevents algae
• Placement: 1–20 cm

359,95

In stock

Advantage

Helophytes Plants 2–3 m²

• 45 plants for 2–3 m²
• Removes nitrite and prevents algae
• Depth: 1–20 cm

In stock

Anti-Algae Plants 4–7 m²

• 40 plants for 4–7 m²
• Controls and prevents thread algae
• Placement: 1–20 cm

189,95

In stock

Complete Aquatic Plant Filter Kit (2–3 m²)

• Makes the wetland filter maintenance-free
• 70 plants + supplies
• Installation depth: 1–20 cm

899,95

In stock

Native Filter Plant Package (8–12 m²)

• 264 plants for 8–12 m²
• Water purification and algae control
• Depth: 1–20 cm

725,00

In stock

Complete Aquatic Plant Filter Kit for 8–12 m²

• Makes the marsh filter maintenance-free
• 219 plants + supplies
• Depth: 1 to 20 cm

2.150,00

In stock

Complete Aquatic Plant Filter Kit (4–7 m²)

• Makes the wetland filter maintenance-free
• 132 plants + supplies
• Depth: 1–20 cm

1.600,00

In stock

Anti-Algae Plants 8–12 m²

• 84 plants for 8–12 m²
• Combats and prevents thread algae
• Placement: 1–20 cm

359,95

In stock

Advantage

Pond Edge Plants 4–7 m²

• 105 plants for 4–7 m²
• Removes nitrite and prevents algae
• Depth: 1–10 cm

In stock

Advantage

Pond Edge Plants 8–12 m²

• 180 plants for 8–12 m²
• Removes nitrite and prevents algae
• Depth: 1–10 cm

In stock

Choosing filter plants: usage and quantity

Filter plants are essential for a clear pond. They purify the water by absorbing nutrients that would otherwise feed algae. In this way, they tackle the problem at its source, without the need for technology or chemicals.

Combining different types of plants is key to ensuring proper function.
Tall filter plants purify the water through their roots in the substrate. Low-growing varieties absorb nutrients just below the water’s surface. By combining both, the water is purified at multiple levels, keeping the pond stable and clear.

Always use Pond substrate and not lava rock or gravel. Pond substrate fine and porous, allowing roots to grow well and beneficial bacteria to attach themselves. Lava rock and gravel are too coarse, do not retain nutrients, and in practice often result in poor plant growth and, in fact, more algae.

Choosing filter plants: quantity and best varieties

The right amount is key to the result. Too few filter plants means insufficient filtration.

As a rough estimate, allow for 20 Aquatic plants in shallow water (0.4 to 4 inches deep) per 1,000 liters of water, supplemented by 20 marsh plants (0.4 to 8 inches deep) per 1,000 liters of water.

Not all filter plants are equally effective. The most effective filter plants that are essential for a well-functioning pond are Iris yellow Iris pseudacorus), Acorus Acorus calamus), and Mentha Mentha aquatica). These plants absorb a lot of nutrients and provide structural water purification.

That is why these species are included as standard in our filter and pond kits. These kits have been put together based on years of practical experience and contain exactly the right combination of plants for effective filtration and clear water.

No more algae, cloudy water, or sludge

Delivered when it's convenient for you

From our own organic nursery since 1986

Clear water with our 6-step plan

4.5/5 (3,218 reviews)

Water-purifying plants

Choosing filter plants: usage and quantity

Choosing filter plants: quantity and best varieties

Simon van der Velde

Not sure what your pond needs?

Delivered when it's convenient for you

From our own organic nursery since 1986

Clear water with our 6-step plan

4.5/5 (3,218 reviews)

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No more algae, cloudy water, or sludge