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.

Raised-Bed Kitchen Garden Design: Four-Garden Classic • Gardenary (4)

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 best layout for a raised bed vegetable garden? ›

For home vegetable gardens, narrow beds up to four feet wide are best, as this enables the gardener to reach into the center of the bed. This avoids the requirement for digging and disturbing the existing soil structure, and soil compaction is reduced as there is no need to walk on it.

What's the best size for a raised garden bed? ›

The optimum size for raised garden beds is around four feet wide and eight feet long. This size provides a good balance between planting space and ease of access. However, the size of your raised garden bed will ultimately depend on your available space, gardening needs, and budget.

What size and spacing for raised beds? ›

Optimum Size for Raised Beds

Raised beds are best kept to a maximum of four feet (1.2m) wide. This makes it easy to reach the middle of the beds without stepping on the soil. Beds against a wall or fence should be about 2-3 feet (60-90cm) wide, as you'll only have access from one side.

How deep should my raised garden bed be? ›

They should have at least 8 inches of soil depth to accommodate the root systems of plants, because the majority of plant roots require 6 – 8 inches of soil for healthy root growth. A depth of 8 – 12 inches will suffice for most gardening situations.

What vegetables grow well together in raised beds? ›

Corn, beans, and squash are all excellent crops to grow together. These are larger crops, but if you have a big enough raised garden bed, it's no problem. The corn stalks provide a support structure for the beans, the beans add nitrogen to the soil, and the squash leaves protect the roots.

What should I put at the bottom of a raised garden bed? ›

Some gardeners chose to implement a barrier at the bottom to keep out pests and weeds. Below are a few materials you can use: Cardboard or newspaper: Cardboard is a great option if you are on a budget. You can line the bottom of your raised garden bed with cardboard and newspaper to deter pests and weeds.

How deep should a raised bed be 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.

How high should you fill a raised bed with soil? ›

Most were about 18 to 24 “ deep. The depth of the bed can vary, but 6 inches of soil should be the minimum. Most garden plants need at least 6 to 12 inches for their roots, so 12 inches is ideal.

How thick should wood be for raised beds? ›

Use lumber that's at least 2″ thick. Many beds are built of 2x6s, because a 6″ deep bed will grow nearly anything except carrots and parsnips. At Spotts, we use 2x8s because we like that extra depth. The easiest way to make a raised bed is just to screw some 2x6s together to make a square.

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.

Should I put rocks in the bottom of my raised garden bed? ›

They are unnecessary for drainage. Well-structured soil with plenty of organic matter already provides adequate drainage in a raised garden bed. Rocks are not essential for achieving proper drainage and can even hinder it.

How deep does a raised bed need to be for cucumbers? ›

Medium-rooting vegetables like kale, cucumbers, and zucchini love at least 18 inches. A 2-foot bed is ideal for these types of vegetables, as well as fruits that grow on bushes like blueberries, strawberries, and raspberries.

How should raised garden beds be layered? ›

How to fill a raised garden bed in six simple steps
  1. Step #1: Prepare your garden bed. ...
  2. Step #2: Add a drainage layer. ...
  3. Step #3: Add a layer of ordinary garden soil. ...
  4. Step #4: Add some premium potting mix. ...
  5. Step #5: Water the soil to help it settle & add some mulch. ...
  6. Step #6: Start planting!
Jan 30, 2023

How many plants can fit in a 4x8 raised bed? ›

You can grow up to 32 different plants inside your 4' x 8' raised garden bed using “Square Foot Gardening” techniques. There are countless books and online resources available to guide you in this rewarding method of gardening.

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