How to save, store and make the most of rainwater
Longer, hotter summers and increasingly unpredictable rainfall mean water has never been more precious in the garden. Installing a water butt is one of the simplest — and most effective — ways to conserve resources and keep plants thriving during dry spells.
Why collect rainwater?
Rainwater is free, naturally soft and better for plants than treated tap water. By harvesting it from your roof via a downpipe, you can build up a reserve to draw on during hosepipe bans or periods of drought. It’s a small change that can make a significant difference — both environmentally and financially.
Choosing the right water butt
Water butts come in a wide range of shapes, sizes and styles, from traditional terracotta amphora designs to contemporary slimline models that fit neatly against a wall.
Capacity
Most domestic water butts hold between 100 and 250 litres. If you have the space, a larger model means fewer refills — particularly useful in prolonged dry weather.
Shape and size
Consider where it will sit. Tall, narrow designs are ideal for compact gardens, while barrel-style butts make a decorative feature in larger spaces.
Stand and height
A raised stand allows you to fit a watering can beneath the tap easily and improves water flow.
Lid and fittings
Choose a model with a tight-fitting lid to keep debris out and reduce evaporation. A secure tap and compatible downpipe diverter kit are essential for easy installation.
Installation tips
Position your water butt on level, solid ground — ideally paving slabs — close to a downpipe. Most kits include a diverter that channels rainwater directly from the guttering into the butt, filtering out leaves and preventing overflow.
For maximum efficiency, consider linking two butts together to increase storage capacity.
A sustainable garden essential
Collecting rainwater is a practical step towards a more resilient garden. Whether you opt for a classic terracotta urn or a sleek, modern design, a water butt quickly proves its worth — helping you nurture borders, containers and vegetable beds while making smarter use of a free natural resource.
In a changing climate, it pays to plan ahead. Capture the rain when it falls, and your garden will stay right as rain — whatever the weather brings.
Check out April's issue of Garden Answers for our lowdown on the best options available.
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