Square Foot Gardening Spacing Guide | How it works (2024)

Want to grow a lot in a small space? Want to use your growing area as efficiently as possible and give yourself huge harvests with less work? Then you should plant using the square foot garden method. Spacing plants using the square foot garden method takes advantage of planting by area, as opposed to planting by rows. To optimize growing space, gardeners subdivide their growing area into equal sized planting sections.

Fortunately we’ve made your job easy! Below is our quick and simple overview of knowing exactly how to plant ANY plant using this method.

The main takeaway: Plant by area, not by rows.

Raised gardens and square foot gardens alike, are most efficiently used when planting by area, as opposed to rows. This saves lots of space and allows you to grow much more in a condensed area.

Let us explain…

On the back of a seed packet you are given instructions. They say something like this: “Sow seeds 3″ apart in rows 12-18″ wide.” The row spacing is meant to give you walking room for ease of access to plants. This is great for large gardens, but wastes a ton of space in a raised garden bed! Since you’re growing in a raised bed, everything can be reached at arm’s length – meaning you don’t need the rows to walk down! So,disregard the rows instruction and just look at the first number. In this example, 3”seed spacing.

Square Foot Gardening Spacing Guide | How it works (1)

Take our Garden Grid™ watering system for example. One of the benefits of it, is that it divides your raised garden into equally sized, square planting sections that are roughly 1 square foot in size. If a seed need to be spaced apart every 3”, then in a square foot you can plant 4 rows across and 4 rows down.

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Here’s the Quick and Easy Math of Square Foot Gardening

12in. x 12in. planting area

3in. seed spacing

12in. wide/ 3in. = 4 seeds wide

12in. long/ 3in. = 4 seeds long

4 seeds wide x 4 seeds long = 16 plants that can be grown in a square foot!

Grow a lot more, in a smaller space!

Pretty simple right?

Now you may ask us, “If we can grow so much in such a small place, why don’t farmers do it?

Well, there’s a good answer for that. Remember the row spacing we were talking about earlier? Simply put, farmers need that extra spacing so they can reach all of their crops. Like we mentioned above, in raised gardens, everything is designed to be within arm’s reach, so you don’t need the extra row spacing!

Square foot garden spacing is a simple and effective way of growing a lot, in a little area. To make the most of your area, use a plant spacing guide to give yourself pre-mapped planting squares so you plant efficiently and keep your garden looking neat and tidy!

Want more info on planting guides? Take a look at our Salsa Garden and Salad Garden planting layouts or our popular All-In-One Plant Spacing Guide!

Square Foot Gardening Spacing Guide | How it works (2024)

FAQs

Does square foot gardening actually work? ›

Popularized by retired engineer-efficiency expert Mel Bartholomew, square-foot gardening allows you to get a high yield from a small area—a win-win situation for beginning and experienced gardeners. It's especially beneficial to gardeners who don't have much time or yard space.

How far apart should I plant my square garden? ›

4″ plant spacing = plant 9 in each square. 6″ plant spacing = plant 4 in each square. 12″ plant spacing = plant 1 in each square. Some plants (such as melons, large squash, and tomatoes) require more than one square.

Is there an app for square foot gardening layout? ›

Garden Manager is a web app that allows you to visually create your beds, then say what you want to plant per square foot. Based on your information that you give it about the amount of sunlight the bed gets, and how deep your soil is, and your planting zone, it will help you choose the best vegetables to plant.

What is the best layout for a square foot garden? ›

To keep the planting simple, there are no plant spacings to remember. Instead, each square has either 1, 4, 9, or 16 plants in it, depending on the size of the plant—easy to position in each square by making a smaller grid in the soil with your fingers.

What are the problems with square foot gardening? ›

More frequent maintenance : Because a square foot garden is planted so densely, weeds are a huge pain to remove once their roots get established. Your best bet: Remove when they're still tiny seedlings. This may require weeding a few times a week, but it beats wrestling with a full-grown monster.

What is the square foot method? ›

Square Foot Method – In appraisal, a method of estimating the replacement cost of a structure; it involves multiplying the cost per square foot of a recently built comparable structure by the number of square feet in the subject structure.

What is the best layout for garden plants? ›

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.

How important is spacing in a garden? ›

Aesthetics aside, plant spacing is critical to ensuring long-term plant health. When plants are crowded together, they compete for water, nutrients, and sunlight. Crowded plants often bloom poorly due to poor nutrition, or because not enough light reaches the shaded branches.

How do you map a square foot garden? ›

Grid Gardening

A square foot garden can be thought of as a grid. For example – a raised bed that is 4 feet by 4 feet would have 16 square feet. With square foot gardening you could plant 16 different vegetables if you wanted, one in each square. Or you could have 16 squares of the same vegetable.

How do you make the grid system for a square foot garden? ›

A popular method involves placing stakes or screws at one foot intervals around your bed and using tomato twine to act as the visual divider. This method is especially useful if you plan on removing the grid later on in the growing season.

How do you layout a square garden? ›

One common approach to square-foot gardening is to build 4' x 4' raised beds, but any size will work with this method. The important feature is using string, wire, or other materials to create a lattice or grid of one-foot square blocks to help you plant efficiently.

How do you calculate garden spacing? ›

For a square bed, multiply the length of the bed by its width to determine how many plants per square foot. For a circular planting bed, you can calculate how many plants per square foot is ideal by multiplying 3.14 by the distance from the center to the edge of the bed.

How much food can you grow in a square foot garden? ›

With 3 inch seed/plant spacing needs, you can grow 16 plants in a 1 square foot area. Step 6: Keep planting! You now have the plant spacing formula for the rest of your garden!

Is square foot gardening the same as intensive gardening? ›

Intensive gardening is a generic term used to describe methods of maximizing the garden space you use to grow your plants. Square foot gardening, an intensive gardening technique, was popularized by Mel Bartholomew in his book Square Foot Gardening.

How much does a vegetable garden yield per square foot? ›

With good soil and close planting, you might estimate a conservative yield of about 1 pound per square foot. So in a 400-square-foot garden — just 20 by 20 feet — you can grow enough veggies for yourself.

How many square feet of garden do I need to be self sufficient? ›

The general rule of thumb when it comes to growing a garden is to have 100 square feet of gardening space (traditional row gardens) per person for fresh eating only. To preserve food and put it up for the non-growing season, you're looking at 200 square feet of gardening space per person.

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