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Why Reeds and Bulrush Keep Coming Back in Your Lake (And What You Can Do About It)
- Apr 5
- 2 min read
Why Do Reeds and Bulrush Always Come Back?
One of the most common things we hear from domestic lake owners is:
“We had the reeds cut… but they’ve all come back again.”
This is completely normal.
Reeds and bulrush (reed mace) are some of the most aggressive aquatic plants in the UK, and once established, they won’t disappear on their own.
The Real Reason They Keep Returning
The issue lies below the surface.
Both reeds and bulrush grow from underground root systems (rhizomes), which:
Spread across the lakebed
Store energy year-round
Produce new shoots each growing season
If these roots are left in place, regrowth is inevitable. This is why simply cutting the reeds often only provides a short-term result.
Why Cutting Alone Doesn’t Solve the Problem
Cutting vegetation at the surface may improve the appearance temporarily, but:
The root system remains fully intact
Regrowth often returns thicker the following season
The problem gradually worsens over time
This is why many lakes end up needing repeated work year after year without ever properly improving.
Why Some Lakes Get Worse Every Year
In domestic lakes, the issue often builds gradually.
Reeds and bulrush:
Trap silt and organic matter
Slow water movement
Create ideal conditions for further spread
Over time:
The lake becomes shallower
Vegetation extends further into open water
Previously clear areas begin to close in
A More Effective Approach: Root Removal
For domestic lakes, we focus on removing the problem at source.
Rather than cutting, we use specialist amphibious machinery to grub out reeds and bulrush along with sections of the root system.
This approach:
Reduces the amount of regrowth
Provides a longer-lasting result
Helps restore and retain open water
Where access allows, this method is far more effective than repeated cutting and often more cost effective.
What Results Can You Expect?
After root removal:
Open water is restored
Lake edges are clearly defined
Future maintenance becomes much easier
While some regrowth will still occur over time, it is significantly reduced compared to cutting alone.
When Should You Take Action?
If you’re noticing:
Reeds spreading further each year
Loss of usable water space
Difficulty accessing or using the lake
It’s usually best to act sooner rather than later.
Once the root systems are fully established, the work becomes more involved.
Long-Term Management
Even with root removal, ongoing management is still important.
Typically:
An initial clearance brings the lake back under control
Follow-up maintenance prevents the issue returning
This avoids the cycle of repeated short-term fixes.
Need Advice on Your Lake?
If your lake is becoming overgrown with reeds or bulrush, it’s worth getting an idea of the best approach early on.
We specialise in root removal of aquatic vegetation for domestic lakes, using low-impact machinery designed to work directly from the water.
Feel free to get in touch or send over some photos for initial advice.
