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Raised beds allow you to improve your garden soil, or even grow crops where there’s no soil at all.
Most people use wooded-sided beds, but you can create a raised bed by just putting a thick layer of garden compost on the soil and topping it up every autumn.
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The main advantage is that when your soil is poor that extra 15cm of soil that the raised beds provide makes all the difference, particularly as it’s topped up with soil improver regularly. The surface dries out and warms up quicker in spring, so you can also get ahead with early sowings.
The growing areas are differentiated from the paths, so the soil in the beds remains loose and easy to plant into. The paths can be mulched with wood chips and kept weeded. Most raised beds are no wider than 1.2m as this allows you to reach into the centre of the bed from the sides when planting, weeding, watering and harvesting so you don't ever need to tread on the beds. This width is also easy for you to protect from insects with fine mesh or from cold with fleece.
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If you want raised beds on a hard surface, raise the sides to at least 30cm or preferably higher to give plants a decent depth of soil. Taller raised beds are also useful if you have trouble bending or kneeling, or garden from a wheelchair.
The wooden sides can be a hiding place for slugs and woodlice so be vigilant.
Pay £36.75 for the first year and get the garden you want for less
Get this offerRaised beds kits are increasingly popular for growing vegetables because they look neat and can make cultivation easier. You can make your own, but if that seems like a challenge too far there’s such a huge choice of kits it can be hard to know what type you should go for. Our Best Buy are the most robust beds that gave the best results.
When testing raised bed kits, we looked for the products that were easy to build, robust and attractive. They also had to give us a great crop of veg.
Which? members can log in now to see the full results and which are our Best Buys. If you’re not a member, join Which? to get instant access.
Product | Overall score | Instructions | Ease of construction | Structural strength | Appearance of bed | Ease of use | Potato condition | Potato weight | Final condition* |
---|---|---|---|---|---|---|---|---|---|
Forest Garden Caledonian rectangular raised bed, wooden | |||||||||
Forest Garden raised bed builder pack, wooden | |||||||||
Garden Gear Original Veggie bed, metal | |||||||||
Garden Life metal raised garden bed kit | |||||||||
Garden Skill Build a bed 250mm raised bed kit, plastic | |||||||||
Greena Rectangular raised bed, wooden | |||||||||
Harrod Horticultural Allotment wooden raised bed kit, including capping |
Overall rating The more stars the better. Ignores price and is based on: Clarity of instructions, 5%; Ease of construction, 10%; Structural robustness, 20%; Appearance of bed, 10%; Ease of use, 15%; Potato condition, 10%, Potato weight, 10%; Final condition, 20% *The condition one year after being constructed
You can buy ready-made raised beds, but if you want to save money, you can build your own bed.
Which? Gardening magazine trialled making beds from different materials to see how they compare.
Only Which? members can see the full results of the two materials on test.
Material one and material two will be revealed once you log in.
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Material one pros:
Material one cons:
Material two pros:
Material two cons:
Choose the wrong filling and you can end up with a bed that’s saturated in wet weather and slumps to create a compressed, airless mass with a hard crust that’s tricky to dig, or a mix that is so free-draining that your plants become parched in dry weather.
Which? Gardening magazine trialled different soil mixes to find the best recipe.
Discover how to grow a range of different veg