Step 1 - Raised Beds
Raised Beds vs Growing In the Ground
A raised bed is not automatically better. It is better for specific problems, and it costs money that in-ground growing does not.
Janet H. - the hands-on owner behind Janet Media Group.
Published - last updated
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Build a raised bed if your existing soil is the problem -- compacted, stony, badly drained, contaminated or simply unknown. Dig the ground if your soil is decent and your constraint is money, because good ground plus compost outgrows a badly filled bed every time.
| Situation | Better option | Why |
|---|---|---|
| Heavy clay or poor drainage | Raised bed | You control the medium and it drains above the water table |
| Good loam already in place | In-ground | You are paying to replace something that already works |
| Possible soil contamination | Raised bed | A clean medium above a barrier removes the question |
| Tight budget, large area | In-ground | Compost and a fork cost a fraction of beds and fill |
| Cannot kneel or bend easily | Raised bed | Height is the whole point |
| Hot, dry climate, mains water metered | In-ground | Beds dry faster and need more frequent watering |
| Rented property | Raised bed | It can go with you, and you have not altered the ground |
Quick picks
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Top pickVegega 17" Metal Raised Garden Bed17 in deep, Aluzinc steel, fixed footprint | The same steel, less money | 9.0 | Check price on Amazon |
| 2 |  Greenes Fence Cedar Raised Garden Bed KitUntreated North American cedar, dovetail corners | People who want wood | 8.4 | Check price on Amazon |
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Scores are our own editorial judgment, formed from published specifications and independent sources. They are not aggregated customer ratings, and they are not the result of hands-on testing, which we do not currently do. See how we choose.
What raised beds actually give you
- Control of the growing medium. You choose the mix rather than amending whatever is there over several years.
- Drainage. The bed sits above the surrounding grade, so it drains even when the ground does not.
- Earlier spring soil. A raised bed warms sooner than surrounding ground, which brings sowing dates forward.
- No compaction. Defined beds and paths mean nobody walks on the growing soil.
- Access. Height, on tall beds, is a genuine accessibility gain.
What they cost you
Money, first. The kit plus the fill for one 4 x 8 bed is a real expense, and covering a large vegetable plot in beds multiplies it.
Water, second. A raised bed drains freely and is exposed on all sides, so it dries faster than ground soil. In a hot climate that means more frequent watering, and mulching becomes close to mandatory rather than merely advisable.
And a closed nutrient system, third. Ground soil is connected to a much larger reserve; a bed is not. Beds settle and deplete, which is why they need topping up with compost every spring -- and why a compost bin pays for itself faster in a raised-bed garden than in an in-ground one.
The middle path most people should consider
You do not have to choose site-wide. A common and sensible arrangement is beds for the intensive, high-value crops -- salad, herbs, tomatoes, strawberries -- and open ground for the crops that sprawl and are cheap to grow in volume, such as squash, potatoes and sweetcorn.
That gives you controlled soil where it earns its cost and cheap area where it does not.
If you land on beds, the best raised bed kits is the shortlist and the soil calculator prices the fill. If you land on ground, start a compost bin -- composting for beginners -- because compost is the whole improvement strategy for in-ground soil.
The picks in full
Top pick
Vegega 17" Metal Raised Garden Bed
Vegega
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The same zinc-aluminum-magnesium steel as the premium brand in a fixed shape, which is the trade most first-time gardeners should take.
Vegega is the value answer to the obvious question: if the steel is what makes a metal bed last, can you buy the steel without the premium? Largely, yes. Vegega uses the same zinc-aluminum-magnesium coating, and what you give up is the panel-swap modularity.
For a first bed that is usually the right trade. Most people put a bed where the sun is and then never move it, so paying for reconfigurability you will not use is a bad first purchase when the same money buys the soil to fill it.
Fill cost is the number beginners underestimate. A 4 x 8 bed at 12 inches of fill takes roughly 32 cubic feet, which is around sixteen 2-cubic-foot bags. Work yours out on the soil calculator before you choose a size, not after.
What works
- Same Aluzinc steel specification as the premium option
- Consistently cheaper than the modular equivalent
- Several footprints and heights in the range
- Straightforward bolt-together build
What does not
- Panels do not reconfigure into other shapes
- Smaller accessory range than the bigger brand
- Colorways are limited
Skip it if: you genuinely expect to redesign your garden layout. Reshaping is the one thing this bed cannot do, and it is exactly what Vego charges extra for.
| Material | Aluzinc-coated steel |
|---|---|
| Depth | 17 in (taller sizes offered) |
| Shape | Fixed footprint, several sizes sold separately |
| Assembly | Bolt-together panels |
| Soil needed | About 32 cu ft for a 4 x 8 ft bed at 12 in of fill |
People who want wood
Greenes Fence Cedar Raised Garden Bed Kit
Greenes Fence
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Real untreated cedar with tool-free dovetail corners -- the honest wood option, with the shorter lifespan that comes with wood.
Cedar is chosen for looks and for the fact that it is untreated, which matters if you are uneasy about what a pressure-treated board leaches into a bed you eat from. Cedar's natural oils slow rot without any chemistry at all.
The dovetail corner system is the reason to buy this particular kit rather than cutting boards yourself: the ends slot together, no hardware, and a second kit stacks on top to take a 7-inch tier up to 14 inches. That is worth doing -- one tier is too shallow for much beyond lettuce and herbs.
Set expectations on lifespan. In a wet climate a cedar bed is a multi-year item, not a permanent structure, and the boards touching soil go first.
What works
- Genuinely untreated cedar, no chemical concerns for food crops
- Tool-free dovetail corners go together in minutes
- Stack a second kit to double the depth
- Looks right in an ornamental garden
What does not
- Wood is a consumable -- expect years, not decades
- A single tier is shallow for root crops
- Cedar prices move a lot season to season
Skip it if: you want to buy a bed once. Even cedar is a wearing part in a wet climate, and steel is the better long-run answer.
| Material | Untreated North American cedar |
|---|---|
| Depth | Stackable boards, commonly 7 in per tier |
| Assembly | Dovetail corner joints, no tools required |
| Expandable | Kits stack to add depth |
| Soil needed | About 18 cu ft for 4 x 8 ft at 7 in |
Common questions
Are raised beds better than in-ground gardens?
Only for specific problems: poor drainage, compacted or stony soil, possible contamination, or a need for height. If your existing soil is decent, in-ground growing plus regular compost produces just as well for a fraction of the cost and less watering.
Do raised beds need more water than in-ground beds?
Yes. A raised bed drains freely and is exposed to air on every side, so it dries faster than surrounding ground. Mulching the surface is the main mitigation, and extension guidance credits mulch with a substantial reduction in irrigation need.
Can I put a raised bed over grass?
Yes. Lay cardboard directly on the grass and build the bed on top -- the cardboard smothers the turf and then breaks down, letting roots and worms move between the bed and the soil below. Do not use plastic sheeting or landscape fabric, which block that exchange permanently.
Is it cheaper to garden in the ground?
Considerably, especially over a large area. In-ground growing costs a fork, some compost and time. A bed costs the kit plus the fill, and the fill is usually the larger number. The trade is control and drainage, which are worth paying for when the existing soil is genuinely poor.
Sources
Factual claims on this page are backed by the published sources below, and product specifications are the manufacturers’ own. Where a figure is not published, we say so rather than estimating it.