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How to Start a Raised Bed Vegetable Garden (Beginner Guide)
One bed, done right. Size, sun, soil, first crops and the beginner mistakes that cost a season.
Updated 2026-09-10
Start with one bed
The most common beginner mistake is building four beds and planting all of them in May. One 4×8 ft bed (or two 4×4s) feeds a household salad-and-tomato habit and takes about 20 minutes a week once it is running.
Where it goes
- Sun: 6–8 hours of direct sun. Watch the spot at 10am, 1pm and 4pm on a sunny day before you build.
- Water: within hose reach. A bed you have to carry water to gets neglected by July.
- Width: 4 ft maximum so you can reach the middle without stepping in the bed. Length is up to you.
- Height: 12 in is fine for greens and herbs; 15–17 in lets you grow carrots, potatoes and deep-rooted tomatoes and is easier on your back.
Metal, wood or kit?
Cedar boards last 8–12 years and look classic. Galvanized metal kits (Vego, Birdies) last 20+ years, assemble in an hour and are usually cheaper per year. Untreated pine is the budget option but rots in 3–5 years. See the raised bed kit comparison.
Filling it without spending $200 on bagged soil
For a bed deeper than 12 in, fill the bottom third with logs, branches and leaves (hügelkultur style), then top with a mix of roughly 60% topsoil/garden soil, 30% compost and 10% aeration (perlite, coarse bark or coir). Buy soil in bulk by the yard if you have more than two beds. Full detail in the raised bed soil guide.
What to plant first
Pick crops that forgive mistakes: bush beans, zucchini, cherry tomatoes, lettuce, radishes, kale, basil. Skip cauliflower, celery and melons in year one. Use the planting calendar to get your dates from your frost date, and the companion planting chart to decide what shares the bed.
The weekly routine
- Water deeply 2–3 times a week (daily for containers in heat). A drip kit on a timer removes this job entirely.
- Pull weeds while they are small; mulch with straw or shredded leaves to stop most of them.
- Harvest often: beans, zucchini and lettuce produce more the more you pick.
- Write down what you planted and when. Next spring you will thank yourself.
Mistakes to skip
- Planting warm-season crops before nights stay above 50°F.
- Filling a bed with pure compost (it slumps and stays soggy).
- Crowding: follow the packet spacing even though the bed looks empty in May.
- Buying gadgets before you have grown one season with a trowel and a hose.
What I'd buy first
Vego Garden 17" Tall 9-in-1 Modular Metal Raised Bed
Modular galvanized bed, 17 in tall (deep enough for root crops), 9 layouts from one kit. The bed I'd start with if I only bought one.
Check price via Vego GardenBotanical Interests Beginner Vegetable Seed Collection
Beginner-proof varieties (bush beans, zucchini, lettuce, radish, cherry tomato) with the best planting instructions on the packet.
Check price via Botanical InterestsRaindrip Automatic Container & Raised Bed Drip Kit
Complete kit with timer for 2-4 beds; the single biggest time-saver for a beginner.
Check price via Amazon Associates (US)
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