Raised Bed Gardens: How To Build the Perfect 4' x 8' Box (2024)

Do you like the idea of a raised bed garden box with easy-working, fertile soil that’s much easier to keep weed-free? Is the idea of not having to bend down so much appealing? Do you like the idea of more time for other things? Give me low maintenance, please.

PS Ours are over 14 years now and still strong, attractive, and doing their job!

About 4′ x 8′ Raised Bed Boxes

4’x 8′ raised bed garden boxes are almost perfect for easy-care gardening.

In only 32 square feet, you can raise a highly productive garden. All you need is a little fore-thought.

I plant my raised bed boxes after the concept used by the intensive gardeners of Europe.French gardeners are masters at getting the most from a little in their potager or kitchen garden.

Often, it fills most of a small side yard; it is so tightly packed with various vegetables in various stages that one must do a balancing act to get in to tend.

Every spare space is used.

Most are so well cared for that you wonder if Monet was inspired by them!

Though old-fashioned gardeners plant mainly right in the ground, the intensive method is perfect for raised beds with not as much bending. It is also a very clean way to garden since you are not walking in soil or mud at all, depending on how you finish the walkways.

4-5″ Deep Stone Pathways

We used stone 4″ deep so the walks are almost totally weed free. They are set so the paths are 4 feet, 4″ wide for my wheelbarrow. The stone we used is locally called “Quarters”, but in other places it may have a different name. This site shows it well so you can have a picture to go by. It is theDelaware River Stone 1 1/4 inch.

You can create a very small garden or quite a large one by configuring the boxes to your needs and space. We did a grid of 9 boxes – 3 rows of 3 (with 4 foot, 4″wide aisles) and can grow a lot of food.

Also, I know families that are making full use of just one 4’x8′ box growing: 3 herbs, 2 tomato plants, 2 – 4′ rows of green beans, 1 row sweet peppers and 1 row each kale, green onions, spinach and lettuce.

Because of the tightly packed vegetables, the plant’s leaves canopy fast and the germination of weed seed is at a minimum.

Materials to Build One Raised Bed:

An alternate (very permanent) idea would be metal troughs or elongated metal feed containers like livestock farmers use. You will need to drill holes in the bottom so rain water won’t pool.

Perfect Soil Mixture Recipe

  • 1/3 vermiculite (or perlite).
  • 1/3 the best weed-free soil or seasoned compost you can find
  • 1/3 peat moss.

We dumped the bags into each raised bed in thirds and ‘stirred’ with shovels. We made play of the work, and once it was done, we had a productive garden!

You can get peat moss and vermiculite at many of the garden centers (Lowe’s, Menard’s, Home Depot, etc.) or your local nursery may order it for you.You’ll find big bags of vermiculite at Menard’s in the insulation aisle (4 cu yd for around $12.00).

For the total amount to add to the raised bed garden box, you can use calculations found here.

The average French gardener would be incredulous at the ‘recommended’ spacing used by the American gardener. Due to space limitations in many areas in Europe, over the centuries they have learned ways to maximize production, allowing creativity and a free spirit to flow into their potager.

I got a lot of my ideas fromMel Bartholomew’sAll New Square Foot Gardening: The Revolutionary Way to Grow More In Less Space. It opened my mind to think out of the box, and I’ve been gardening like this ever since.

By inter-planting (having another plant ready to stick into the ground the moment that one is harvested) you keep the space filled. You can tuck in onion sets (save some back from your spring planting) and have more green onion tops coming in early fall.

Succession Planting

Also, succession planting is practiced. In reading about this years ago, I have learned that once my early crops of cool weather plants (beets, cabbage, spinach, lettuces, turnips, and early onions) are harvested, I can them plant the lovers of hot weather and use the same space twice! Sweet and hot peppers, tomatoes, potatoes, squash, another cabbage or two…

With good planning and management, it would not be impossible for 4 – 4’x8′ raised bed garden boxes to produce enough for a family of four coming ready at different intervals.

And as you harvest (or thin) your hot weather crops, you might be able to squeeze in the seed or seedlings for a cool weather crop repeat.

In this way gardening is not boring, but can be a satisfying creative adventure.

Back To Eden & Composting

The secret in a raised bed or a garden in the ground is composting. If you haven’t seen the Back To Eden Movie, you are missing something very special that will revolutionize the way you think about gardening!

Are you planning a garden? Have you thought about raised beds?

How To Start A Sustainable Garden

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Raised Bed Gardens: How To Build the Perfect 4' x 8' Box (2024)

FAQs

How much soil do I need for a 4 x 8 raised garden bed? ›

For a 4x8–foot raised bed with a 10” height, about 1 cubic yard of soil is needed. 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.

How many pepper plants are in a 4x8 raised bed? ›

Based on our research, it is recommended to plant 2-3 pepper plants per square foot in a raised bed, which means a 4x8 raised bed can accommodate around 64-96 pepper plants.

How many cucumber plants are in a 4x8 raised bed? ›

Using square foot gardening, you can comfortably grow two cucumber plants per square foot. Another great plant for square foot gardening is the cucumber. A healthy square foot gardening cucumber plant has a yield of approximately 5 pounds, and can also be grown vertically with support from a trellis.

How to fill a raised garden bed cheaply? ›

Use the Lasagna Garden Method

To start, lay down sheets of cardboard or newspaper for weed suppression and then fill the raised bed structure halfway up with alternating layers of nitrogen-rich materials (like kitchen scraps and grass clippings) and carbon-rich materials (like wood chips and dried autumn leaves).

How deep should soil be in raised bed for vegetables? ›

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 far apart should I plant tomatoes in a raised bed? ›

Plant Tomatoes

Plant them at 18- to 24-inch spacing. Don't worry about letting the plants lean to one side; in a few days, they straighten up on their own. Water tomatoes at planting and regularly while growing to avoid blossom-end rot, which is caused when the soil is allowed to dry out.

How close to plant peppers in raised beds? ›

Quick Guide to Growing Peppers

They grow well in raised beds, containers, and in-ground gardens. Plant them 18 to 24 inches apart in a sunny, well-drained spot. Pepper plants need at least 6-8 hours of sunlight per day. Mix compost or other organic matter into the soil when planting.

How far apart should I plant cucumbers in a raised bed? ›

Space the plants 12 inches apart. If you plant cucumbers on a raised garden bed, mulching is a good way to keep the soil moist and increase yield. Cucumbers like light, airy coverings, such as straw or crushed leaves. Avoid using anything too dense, which may suffocate the plant.

How many tomato plants in 4x8? ›

If you are able to work on all sides of the bed you've made, I would put 8 indeterminate (tall) tomato plants in there, placing them in 2 rows of 4 with the 8 ft stakes that they'll need pounded in at the edges of the bed and the tomatoes placed right against them inside the bed, if that makes sense.

Can I plant cucumbers and tomatoes together? ›

Cucumbers and tomatoes can be planted by each other as they share similar growing habits and therefore you can grow tomatoes by cucumbers. Greg Volente from Greenhouse Today explains that: 'Cucumbers and tomatoes are two vigorous growers in a spring garden. They're both vining plants and share similar basic needs.

What is the best layout for a vegetable garden? ›

As a general rule, put tall veggies toward the back of the bed, mid-sized ones in the middle, and smaller plants in the front or as a border. Consider adding pollinator plants to attract beneficial insects that can not only help you get a better harvest, but will also prey on garden pests.

Can you plant cucumbers and peppers together? ›

Cucumbers and squash plants pair well with peppers because their low growth habit shields the soil from direct sun, prevents weeds, and keeps your soil from drying out too quickly.

How to calculate the amount of soil needed for a raised bed? ›

For example, if your bed is 6 feet long, 3 feet wide and 16.5 inches high, convert the inches to feet so your new measurements are 6 x 3 x 1.4 feet. Multiply all the measurements together: 6 x 3 x 1.4 = 25.2 cubic feet. Divide the answer by 27 to get the number of cubic yards.

How much topsoil do I need for a 4x4 raised bed? ›

4' x 4' x 2' = 32 cubic feet

If you have more than one garden that's the same size, you'll just multiply the total cubic feet per bed by the number of beds. Here's the Soil Calculator for two raised beds that are both 4' x 4' x 1'.

How many cubic feet are in a 40 lb bag of soil? ›

A 40 pound bag of topsoil usually contains about 0.75 Cubic Feet of soil. There are 25.71404638 Dry Quarts in a Cubic Foot, so a 25 quart bag of potting soil would equal approximately 1 Cubic Foot. If you are filling pots, you will be fine. If you are spreading it on a lawn of any significant size, it will disappear.

How much potting soil for a 4x4 raised bed? ›

Another way to calculate how much soil you need is by using the area method. Simply multiply the length and width of your bed together, then divide that number by 27 (the cubic feet in a cubic yard). This will give you the number of cubic yards of soil you need, assuming an average soil depth of one foot.

References

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