A well-planned raised bed layout is the difference between a garden that produces all season and one that grows tangled, shaded, and disappointing by midsummer. Raised beds let you control the soil, garden in tight spaces, and pack plants closer than traditional rows — but only if you arrange them with light, spacing, and access in mind. This guide covers how to size and orient your beds, how close to plant each crop, how to combine companions and run successions, and gives you ready-to-use sample layouts for the most popular bed sizes.
Part of our Vegetable Gardening & Raised Beds guide →
In this guide
Key Takeaways
- Keep beds 3–4 feet wide so you can reach the center from either side without stepping on the soil.
- Orient beds north-to-south and place tall crops on the north end so they don’t shade shorter ones.
- Use intensive square-foot or block spacing instead of rows to fit far more into the same area.
- Pair compatible companions and run successions so beds stay full and productive from spring through fall.
- Leave at least 18–24 inches of path between beds, wider where you’ll push a wheelbarrow.
Bed Dimensions and Orientation
The single most important rule is that you should never have to step into a raised bed. Compacted soil defeats the whole purpose. Keep beds no wider than 4 feet so you can reach the middle from both sides; if a bed sits against a wall or fence with access from only one side, limit it to 2–2.5 feet wide. Length is flexible — 6 to 8 feet is easy to manage. A depth of 10–12 inches suits most vegetables, while root crops like carrots and parsnips prefer 12 inches or more.
Orient beds with their long axis running north to south where possible. This lets the sun travel along the bed and reach plants evenly through the day. Then plant the tallest crops — pole beans, tomatoes, corn, trellised cucumbers — on the north or back edge so they don’t cast shade over shorter plants to the south. Vegetables need at least 6–8 hours of direct sun, so site beds in the most open, sunny part of the yard.
Paths and Access
Plan paths before you place beds. Leave at least 18 inches between beds for walking, and 24–36 inches on at least one main route so a wheelbarrow or garden cart can pass. Mulch paths with wood chips, gravel, or straw to suppress weeds and stay clean in wet weather. Comfortable access means you’ll actually maintain and harvest every part of the garden rather than letting the back corners go feral.
Intensive Spacing: Beyond Rows
Because you never walk on a raised bed, you can abandon wide row spacing and plant in a grid or blocks, fitting far more into the same footprint. The square-foot method divides the bed into 1-foot squares and assigns a plant count to each based on size: 1 per square for large plants like tomatoes, peppers, or broccoli; 4 per square for lettuce or bush beans; 9 for spinach or bush peas; and 16 for carrots, radishes, or onions.
As a quick reference for direct block spacing: tomatoes 18–24 inches apart, peppers and eggplant 18 inches, bush beans 4–6 inches, lettuce 6–8 inches, carrots and radishes 2–3 inches, onions 3–4 inches, and broccoli or cabbage 15–18 inches. Trellised crops like cucumbers and pole beans can go closer because they grow up. Tight spacing shades the soil, conserves moisture, and crowds out weeds, but don’t overdo it — overcrowding invites disease and competition.
Companion Planting
Group plants that help rather than hinder each other. Classic pairings include tomatoes with basil and marigolds (pest deterrence), carrots with onions (each confuses the other’s pests), lettuce tucked under taller plants for shade in summer heat, and the “three sisters” of corn, beans, and squash. Beans and peas fix nitrogen that nearby leafy crops appreciate.
Avoid a few poor neighbors: keep beans and peas away from onions, garlic, and chives, which stunt them; don’t crowd tomatoes and potatoes together since they share diseases; and give brassicas like cabbage and broccoli their own space as heavy feeders. Tucking flowers like marigolds, nasturtiums, and calendula among the vegetables draws pollinators and beneficial insects.
Succession and Crop Rotation
A raised bed should rarely sit empty. Succession planting keeps it producing: as soon as spring lettuce, radishes, or peas finish, replant the space with a warm-season crop like bush beans, or sow another round of fast greens. Stagger small sowings of lettuce and beans every two to three weeks for a continuous harvest instead of a glut. In late summer, sow fall crops — kale, spinach, more lettuce, garlic — as summer plants fade.
Across seasons, rotate plant families between beds so the same crop doesn’t grow in the same soil two years running. This breaks pest and disease cycles and balances nutrient demands — follow heavy feeders like tomatoes and brassicas with soil-building legumes, then light feeders like root crops. Even with just two or three beds, a simple rotation pays off in healthier plants.
Sample Layouts
The 4×4 starter bed
Using square-foot spacing across sixteen squares: one tomato (caged) and one pepper in the north row, a basil and a marigold beside them, four lettuces and four bush beans in the middle rows, and a back row of carrots, radishes, spinach, and onions at their tighter counts. This single bed delivers salad, herbs, and a steady picking of greens and roots through the season.
The 4×8 family bed
Run a trellis along the north long edge for pole beans and cucumbers. South of it, set three tomatoes spaced 24 inches with basil and marigolds between. The front third becomes a rotating salad-and-roots zone — lettuce, spinach, carrots, radishes, and onions — that you re-sow as each crop finishes. This layout balances big producers with quick successions.
The small-space 2×4 bed
Perfect for a patio or narrow yard. Put a single trellised cucumber or compact tomato at the north end, then pack the rest with high-value cut-and-come-again greens, herbs, and radishes. With tight spacing and steady re-sowing, even this little bed keeps a kitchen in salads. For more ideas on tight footprints, see the urban gardening hub.
Filling Beds and Watering
Fill new beds with a blend of roughly 50–60% quality topsoil or garden soil, 30–40% compost, and a portion of aeration material like coarse sand or perlite for drainage. Avoid filling deep beds with pure compost, which slumps and stays soggy. Top up with an inch of fresh compost each season as the soil settles and feeds your crops.
Raised beds drain faster and warm earlier than ground soil, so they may need more frequent watering — generally about an inch of water a week, more in heat. A drip line or soaker hose laid through the bed waters efficiently at the roots and keeps foliage dry, reducing disease. Mulch the soil surface with straw to hold moisture and block weeds. If you want to extend the season at both ends, a cold frame over a bed lets you grow weeks longer; our guide on how to build a cold frame shows how, and the indoor vegetable garden guide helps you start transplants for the beds.
Frequently Asked Questions
How wide should a raised vegetable bed be?
Keep beds no more than 4 feet wide so you can reach the center from either side without stepping on and compacting the soil. If a bed is accessible from only one side, against a wall or fence, limit it to about 2–2.5 feet wide.
Which way should I orient my raised beds?
Run beds north to south so sunlight reaches plants evenly across the day, and place the tallest crops like tomatoes and pole beans on the north end so they don’t shade shorter plants to the south. Site the beds where they get at least 6–8 hours of direct sun.
How close together can I plant in a raised bed?
Because you never walk on the soil, you can use intensive square-foot or block spacing — for example one tomato per square foot, four lettuces, nine spinach, or sixteen carrots or radishes. Tight spacing shades out weeds and conserves moisture, but avoid overcrowding, which invites disease.
What should I fill a raised bed with?
Use about 50–60% quality topsoil or garden soil, 30–40% compost, and some aeration material like coarse sand or perlite. Avoid filling deep beds with pure compost, which slumps and stays soggy; top up with an inch of fresh compost each season.
How much space should I leave between raised beds?
Leave at least 18 inches between beds for walking, and widen at least one main path to 24–36 inches so a wheelbarrow or cart can pass. Mulch the paths with wood chips, gravel, or straw to suppress weeds and stay clean in wet weather.