Pond problems

Considering how beautiful they are, ponds take very little looking after. A regular sweep of the surface to remove debris and a scattering of feed for fish is usually all that's needed.

Occasionally, though, ponds run into problems. Our garden centre has all you need to solve them. Here's how:

Green water is caused by algae multiplying rapidly in sunshine or high nutrient levels. Add surface-shading plants like waterlilies and check there's no fertiliser leaching into the pond. Barley straw and 'pond clear' available in our garden centre, helps clear algae too.

Blanket weed and duckweed: these troublesome weeds proliferate in over-rich water and sunlight. Remove duckweed with pond nets and twirl blanket weed around canes to pull it out. Dense planting out-competes the weeds: stock up from our garden centre.

Lack of oxygen has fish coming to the surface and gasping for air. Bump up oxygen levels with oxygenating plants, or by introducing a pump and fountain to aerate the water.

Winter freezing means oxygen can't get into the pond, putting fish and wildlife at risk. Breaking ice shocks fish, so instead, melt a hole in the ice with a saucepan of hot water.

Please ask the staff at our garden centre for more information and advice about solving pond problems.

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We offer help and great advice

Have a browse through some of our beautiful gardens or visit our superb farmshop full to the brim with fantastic local produce.

The Derwen, one of the finest independent garden centres in the country, is owned and run by the Joseph family, who also own the Dingle Nurseries www.dinglenurseries.co.uk and https://www.derwenwholesale.co.uk

Contact Info

Address:  Derwen Garden Centre,
Guilsfield, Welshpool, SY21 9PH
Office:(01938) 553015
Email:[email protected]


Opening Hours

Derwen Garden Centre sells a range of indoor and seasonal outdoor plants and bulbs and also gifts, bird food, tools and National Garden Vouchers.

Mon - Sat:9.30am - 5.30pm

Sunday:11am - 5:pm