Raised-Bed Kitchen Garden Design: Four-Garden Classic • Gardenary (2024)

Raised-Bed Kitchen Garden Design: Four-Garden Classic • Gardenary (2)

The Four-Garden Classic Is Our Favorite Raised Bed Garden Design

When I first started my kitchen garden design company, Rooted Garden, I thought that designing a kitchen garden meant placing a wooden box in the middle of someone's yard (and if they had lots of room, we'd do two boxes). It didn't take me long to discover that gardens, like homes, can actually come in many different styles, sizes, and layouts.

After designing hundreds of garden spaces, I've narrowed my favorite designs down to the top six that I've found work well in spaces both functionally and aesthetically. These six garden design layouts include: border gardens, twin gardens, garden trios, keyhole gardens, four-garden classics, and formal potagers.

The size and shape of the yard space that you have available will play a big factor in helping to determine which is the best raised bed garden layout for you. Today, we're going to focus on my favorite—the four-garden classic.

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This Garden Bed Layout Works Well in Large, Square Spaces

The four-garden classic requires a space that's square (or nearly square) in shape and at least 15 feet wide. Each of the raised beds in this garden layout are the same size, typically 4 feet, 6 feet, or 8 feet long and 2 to 4 feet wide. We often design raised beds to be rectangular for this classic layout, but we've also had spaces where we felt squares worked best.

(Learn more about the best length, width, and height for raised beds in our complete guide to raised garden beds.)

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We've been able to squeeze this design in well-lit side yards before, so don't think you have to have a huge, flat backyard to make this layout work.

The Best Raised Garden Bed Layout Ideas Appeal to Our Love of Symmetry

There's a reason this layout is tried and true—a classic in the garden design world. The symmetry between the two sides of the garden creates balance, harmony, and order. Aesthetically speaking, four gardens are what I think of as kitchen garden design perfection.

It's easy to create this symmetry by arranging the four raised beds in a grid-style with designated pathways in between. (Learn more about garden pathways.)

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Four Raised Garden Beds Give You Lots of Flexibility When Growing Vegetables

Functionally speaking, four raised beds allow you to grow lots of delicious leafy greens, herbs, root crops, and fruiting plants. You can separate crops and plant methodically (you can even practice easy crop rotation if you're into that). You can have the two halves mirror each other across the middle pathway, or you can have each of the four beds planted the same.

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This Garden Bed Design Is Like an Outdoor Room

Thanks to the four raised beds acting like four walls, the feeling you have when you're standing inside this type of garden is like being in your own magical little oasis. Imagine being able to escape the stressors of life for a bit in your own backyard and snip some herbs for dinner. I have a feeling that a four-garden classic kitchen garden would quickly become your favorite "room" in your home.

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Keep these tips in mind when you're designing your own kitchen garden space.

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Remember Accessibility

Raised beds in this raised-bed garden layout are typically accessible from multiple sides. If you can tend each bed from all sides, you could go as wide as four to five feet with each raised bed. Anything beyond five feet, however, would make it difficult to tend and harvest from plants in the middle of the bed.

If you can only tend from one side (say, for example, one side of your four-garden classic design would need to back up against a fence or wall), I’d recommend staying under two and a half feet, which is probably about as far as your arm can reach.

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When we designed a four-garden classic for our fantastic Rooted Garden client Dawn, we chose to install 3 foot-wide raised beds and increase the ease of moving through the space by laying black star gravel throughout the entire garden area. We added pavers along the central walkway to make stepping along the garden even more comfortable.

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Pair These Four Raised Beds with Garden Trellises

Garden design means using more than just the horizontal space available in your yard. Height is incredibly important too, not just for adding vertical interest but also for maximizing your growing space. With that in mind, each of the four beds in this design can have their own obelisk trellis, or you can connect two raised beds across the center walkway with a pair of arch trellises.

My favorite is to use arch trellises as a sort of grand entrance into the kitchen garden space. Few things are more beautiful or more inviting than an arch trellis covered in tomato vines or another climbing plant. (Explore ourcomplete listof what to grow up garden trellises.)

Dawn's garden features two Nicole trellises, which we're working on selling as easy-to-assemble kits in the Gardenary shop soon!

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Shop Gardenary's Arch Trellises

Don't Overextend Your Garden Space

Dawn is fortunate to have a beautiful and quite large backyard, but she wanted to preserve plenty of lawn for other outdoor activities. You don't have to fill your entire outdoor space with a kitchen garden. Also, keep in mind that the larger you build your garden, the more time you'll need to spend tending the plants growing there.

Dawn has added some extra growing space with pots and an extra tall raised bed in the back of the garden (I call it a bonus bed). Pots or small containers are ideal for growing plants like mint that spread and might take over a garden bed.

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Let Gardenary Help with Your Garden Design

Think of all the good stuff you could harvest from four raised beds in your own backyard! If designing your own garden feels daunting, we've got lots of resources here at Gardenary to help you create a space where you can grow and flourish, including my book, Kitchen Garden Revival, and our online kitchen garden design course, Kitchen Garden Academy.

Thanks for helping us bring back the kitchen garden, whether you're gardening from four small pots or four large raised beds!

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Raised-Bed Kitchen Garden Design: Four-Garden Classic • Gardenary (2024)

FAQs

What is the most efficient vegetable garden layout? ›

Additionally, arrange the plants in such a way that the tallest ones are at the north end of the row, followed by medium-height veggies, and finally, the shortest ones at the south end. This arrangement maximizes sunlight exposure for all the plants.

Should I mix topsoil with compost for a raised bed? ›

Assuming that the soil is in good shape (not compacted, topsoil intact, drains well) add 2-4 inches of compost (homemade or purchased) and mix it with the top 4 inches of soil using a garden fork or spade. You can also add and mix in topsoil from your pathways to increase the soil depth (see below).

What plants are best in raised beds? ›

The increased drainage of raised garden beds will help root crops like beets, carrots, parsnips, radishes, potatoes, sweet potatoes, garlic and even onions from rotting or getting bogged down by too much water in the soil.

How deep should a raised garden bed be? ›

Vegetable Beds: On the other hand, when it comes to vegetable beds, the bed must be approximately 12 to 18 inches deep to ensure adequate depth for the roots of your plants. This is especially important if your raised bed is placed on cement or the patio, which will inhibit roots from growing deeper into the ground.

How many bags of soil do I need for a 4x8 raised bed? ›

For a 4x8-foot raised bed with a 6” height, using Mel's Mix: about 5 cubic feet each of compost, peat moss, and vermiculite is needed. It usually takes about two to three bags of purchased fertile mix (1.5 cubic feet each) to cover the bed surface to a depth of 2 inches.

How deep should topsoil be in raised beds? ›

For best results, there should be another 12″ or more of good soil below the bed. This gives your plants at least 18 – 20″ of soil. (The soil in raised beds is usually a few inches below the rim of the bed. This is because soil compresses after several waterings.

How much soil for a 4x8 raised bed? ›

If you're planning a 12-inch deep raised bed, you'll need approximately 24 cubic feet of soil to fill a 4x8 bed. A depth of 18 inches will require approximately 36 cubic feet of soil. The type of soil you use will also affect the volume required to fill your raised bed.

What is the easiest thing to grow in a raised bed? ›

If you're looking for high-yield veggies, you can't go wrong with cucumbers, pole beans, radishes, squash, zucchini, peas, and tomatoes. These vegetables are easy to grow and have been known to produce a large amount of produce per plant, providing you with a bountiful harvest that lasts for weeks.

How to fill a raised garden bed cheaply? ›

The materials used include large rotting logs, sticks and other debris that are layered with grass clippings, coffee grounds, compost, and other organic matter. As the material breaks down, it creates a flourishing environment for beneficial fungi and microbes that mimics the natural landscape of a forest.

What is the best bottom for a raised garden bed? ›

Soil is the foundation of your garden, and you want it to be healthy so you can set your plants up for success! We recommend buying high-quality, nutrient-rich soil in bulk. Or, you can make a soil mix with equal parts topsoil, organic materials (leaves, composted manure, ground bark), and coarse sand.

What size raised bed for tomatoes? ›

Tomatoes should ideally be grown in a raised bed that's at least 15 to 18 inches deep. Many of my clients in Houston are successfully growing tomatoes in 12-inch deep raised garden beds, but their plants tend to be a little stunted compared to plants in deeper beds.

Should vegetable gardens be east or west facing? ›

Beware that west facing gardens often get the brunt of intense afternoon sun which can be deadly for certain plants. North and East facing gardens, as well as gardens that have structures that inhibit direct sunlight, tend to be more shady.

Is it better to plant vegetables in rows or groups? ›

Being able to reach all your plants means you can keep the garden weeded and harvest more easily too. Grow more, harvest more. If you have the space for it, row gardening allows you to plant more and harvest more vegetables. Squares are limited because if they are too big, you can't reach the plants in the middle.

What is the best position for vegetable beds? ›

Aspect and orientation - most fruit, vegetables and cut flowers need full sun, so position beds in the south- or west-facing parts of your garden, away from the shade of overhanging trees. Run long beds north to south for even sunlight levels.

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