Building a pond

You can add water features to your garden whatever its size. From small container ponds or flexible liner for a pond in whatever shape you want – you'll find them all in our garden centre. Follow our five steps to install your pond safely and successfully. We also have pumps for ponds and water features. 

1: Dig your hole to the size you want. A depth of 75cm is plenty for most ponds: cut shelves into the sides for planting (if using a rigid liner, follow its contours).

2: Remove stones and any debris sticking out of the ground which might puncture your liner.

3: Line the hole with a thick 5cm layer of sand, (or use pond underlay),so your liner sits on a smooth surface. Old carpet works well, too.

4: Install the liner: unfold liner completely before working it into place, keeping creases to a minimum. Rigid liners must be completely level: adjust as necessary, then back-fill round the edges with more sand.

5: Fill with water using rainwater from your water butts if possible to avoid tap water chemicals. If you have to use tap water, let it stand for a few days before introducing fish.

Please ask the staff at our garden centre for more information and advice about building ponds.

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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 and

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