How to Plan a Small Garden Bed
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How to plan a small garden bed starts on paper, before you buy any seed or transplants. Four decisions shape the plan: where the bed sits, how big it is, which crops go in which rows, and which crops follow the early ones. The University of Delaware, Rutgers and Oklahoma State extension guides all begin with a sketch, and the steps below follow their advice. The worked numbers use a bed of 4 by 8 feet, and the spacing figures come from a university planting guide.
Quick answer
- Sketch the bed on paper before you order seed or plants. The Delaware guide puts it plainly: “A good gardener plans the garden on paper long before spring.”
- Choose a spot with full sun and drainage that does not leave water standing after rain.
- Count plants with the in-row and between-row spacing from a planting guide, then fit the crops to the bed.
- Put tall crops on the north side and perennials along one edge.
Decide how big the bed should be
The size of the bed depends on the household more than on the space. The Delaware guide explains: “The size of a family garden depends on the number in the family, the time available, and the amount of canning, freezing and storing to be done.” A bed that suits one household can be too small for another, so start by counting how many people will eat from it and how much time you have each week for weeding and harvest.
The same guide makes a point that matters for a small plot: “It’s better to do a good job with a small garden than a poor job with a large garden.” A bed you can keep weeded and watered is worth more than a larger bed that goes unused by midsummer. Rutgers adds that the plan should record the garden size, so write the length and width at the top of the sketch before anything else.
This guide uses 4 by 8 feet for its numbers. That size is our assumption, chosen because it is easy to measure and mark. Keep the same three-step method if your bed is a different size.
Start with sun, drainage and the bed type
The sources do not agree on one sun number. The Wisconsin guide sets the floor at six hours: “Most vegetables require full sun (i.e., at least six hours of direct sunlight) each day.” The UNH guide asks for more: “Most vegetables do best in full sun, over 8 hours of direct sunlight per day.” Rutgers sorts crops by need instead. Leafy vegetables can manage on four to five hours of sun, root vegetables need five to six, and fruiting vegetables need at least eight. For a small bed, the sunniest spot you have should go to the fruiting crops first.
Drainage is the second check. Rutgers asks for a site with good drainage and no standing water, even after the heaviest rain. If your spot fails that test, the Oklahoma guide offers a different layout: “If the site is poorly drained or the topsoil layer is thin or has too much sand or clay, raised beds or container gardening may be a better alternative.” Decide the bed type before you draw the sketch, because a raised frame changes the depth and the spacing you can use.
Keep the bed clear of trees and large shrubs as well. Rutgers notes that trees and shrubs compete with vegetables for water, nutrients and light, so a sunny spot right next to a large root zone is not as good as it looks from the window.
Sketch the bed to scale
A sketch does not need to be a drawing, but it does need to be accurate. The Delaware guide says: “A rough sketch will do, but it must be fairly accurate to be useful.” The Wisconsin guide gives a more specific tool: “When planning your garden, consider drawing a map to scale using graph paper to be sure you have enough space for your plants.” Graph paper works well because each square can stand for a fixed length, so the bed can be measured on paper before it is marked in the soil.
Rutgers lists what the plan should show: “The plan should include the following information: garden size, space between rows and within rows, crops and varieties, planting dates, seeded crops, and transplanted crops.” In a small bed, that list fits on one sheet. Mark the rows, write the crop and variety at the start of each row, and write the planting date beside it. A plan with dates is easier to follow in spring than a sketch that only shows the shapes.
Rutgers also says the plan shows exactly where to place seeds and transplants, which saves time at planting. Once the sketch is done, walk the bed in your head from the first row to the last and check that a hose, a tool and your own reach all work from the spots you have chosen.
Water, tools and access
Water access belongs in the plan from the start. The UNH guide is direct: “Access to a source of water is critical in either case.” It describes two common methods, overhead watering with a hose and breaker attachment or a sprinkler, and drip irrigation with soaker hoses, drip tape or emitters. Pick the method before you fix the bed in place, because a bed far from the spigot will need a longer hose or a second water source.
Rutgers lists the access points to check: ease of access to water for irrigation, tools to maintain the garden, and the nearness of the garden to the kitchen. A bed that is hard to reach gets less weeding and less harvest, so put the sketch next to the path you will walk every day.
Arrange crops by spacing
The Oklahoma guide warns that its spacings are built for a particular method: “The recommended spacings are based on best practices in the traditional row method of gardening.” It adds: “Smaller spacings can be used in alternative gardening methods such as container or square-foot gardening.” A small bed can run on either method, so choose the method first and then use the matching figures.
The worked example uses the in-row and between-row spacing from the Rutgers table, applied to a bed 48 inches wide and 96 inches long. Our assumption is that the figures apply to a bed the same way they apply to a row. The method has three steps. Divide the bed width by the between-row spacing and round down to get the number of rows. Divide the bed length by the in-row spacing and round down to get the plants per row. Multiply the two numbers to get the total.
| Crop | In-row spacing (in.) | Between rows (in.) | Rows across 48 in. | Plants per row in 96 in. | Total plants |
|---|---|---|---|---|---|
| Chard, Swiss | 6 | 24 | 2 | 16 | 32 |
| Beans, snap, bush | 4 | 24 | 2 | 24 | 48 |
| Broccoli | 15 | 30 | 1 | 6 | 6 |
| Leeks | 3 | 15 | 3 | 32 | 96 |
| Tomatoes | 24 | 36 | 1 | 4 | 4 |
Rutgers gives the source figures: chard at 6 inches in the row and 24 between rows, bush snap beans at 4 and 24, broccoli at 15 and 30, leeks at 3 and 15, and tomatoes at 24 and 36. The table is our arithmetic on those numbers, not a yield estimate. The spread is the useful part. Leeks put 96 plants in the bed at their spacing, while tomatoes put four. The in-row figure is the number to check before you order transplants.
The same arithmetic shows why a small bed needs choices. A bed given over to a few tomatoes holds very few plants, and a bed of leeks holds many. Neither result is a rule from the sources. Each one is a planning choice, and the sketch is where you make it. For more on what suits raised beds of this kind, see vegetables to plant in raised beds.
Arrange by height, care and direction
Height comes first. Rutgers says: “Remember to place your tallest growing crops on the north side of the garden so as not to shade lower growing plants.” Tomatoes are a useful test case, because Rutgers lists them among the fruiting crops that need at least eight hours of sun. Put them where the bed gets the most sun and where they will not shade a row of lower crops.
Perennials go on the edge. The Oklahoma guide says: “Perennial vegetables (asparagus, rhubarb, winter onions, etc.) should be planted at one side or end of the garden for efficient operation.” The guide does not give a distance, so measure the space a perennial needs before you pick its spot, and keep it out of the middle of the bed where you will walk and replant each season.
Group by care next. The same guide says: “Vegetables requiring similar cultural practices should be grouped together for ease of care.” Crops that need the same watering routine, the same feeding and the same harvest timing belong in the same block. A bed laid out that way is easier to tend, and it is easier to see which row needs attention on a busy morning.
For a small bed that holds more than one crop, the layout also matters for air. Rutgers says: “Also allow for good air movement through the garden.” Leave room between rows and avoid packing plants so tightly that the leaves never dry. A layout that suits one crop can crowd another, so check each row against the spacing table again after you place the last transplant.
For crops that fit a bed with companion layouts, see raised bed companion planting garden layouts, which covers how crops can share a bed without crowding.
Plan the whole season
A small bed can carry more than one planting when the plan says when each crop comes out. The Delaware guide says: “An important reason to plan is to stretch the harvest season.” It also notes: “A well-planned garden provides a continuous supply of vegetables from early spring to late fall.” That goal depends on dates, which is why the plan needs them written beside each row.
Fall planting belongs on the same sketch. The Delaware guide says: “Spinach planted in the fall will live over winter and can be picked in early spring.” Rutgers recommends planning spring crops for early harvest and later plantings for late summer and autumn harvest. Mark the empty rows in the sketch with the date they become free, so the next planting has a place to go.
Make the plan in five steps
- Write the bed size, the sun hours and the water source at the top of the sketch.
- Mark the rows at the between-row spacing for each crop.
- Write the planting date beside each row, spring crops first and fall crops last.
- Check each row against its in-row spacing and count the plants.
- Place tall crops on the north side and perennials on one edge, then plan next year’s rotation on the same paper.
How we chose
We chose the rules that the pages we read on 2026-10-22 state in plain words. Each planning rule in this guide appears in at least one university or state extension page. Spacing figures come only from the Rutgers table, because it lists in-row and between-row spacing for each crop in the same units. The 4 by 8 foot bed is our choice for the worked example. We left out pages that returned HTTP 403, and a page that returned a bot-check screen in place of the guide.
What we could not verify
The pages we read do not settle every question about a small bed. The subsection below lists the gaps that remain.
What the sources do not say
- The sources do not give a standard size for a small garden bed. The 4 by 8 foot bed is our assumption.
- The Rutgers table does not say whether between-row spacing is measured from the center of one row to the center of the next.
- The sources do not say how much path, edge or end space to allow, so the plant counts in the table are upper limits.
- The sources do not give yields per square foot, so the table is not a harvest estimate.
- The sun hours differ between the Wisconsin, UNH and Rutgers pages, and none of them says which figure applies to a specific yard.
Frequently asked questions
How big should a small garden bed be?
The sources do not set one size. The Delaware guide ties the size to the household and to the time you have for the work, and it says that a good small garden is better than a poor large one. The worked example here uses 4 by 8 feet only because it is easy to measure, and the same three-step method works for any width and length you choose.
Should you sketch the bed before buying seed?
Yes. Delaware says a good gardener plans on paper long before spring, and Rutgers says a plan shows exactly where to place seeds and transplants. A sketch also lets you check the spacing against the number of plants before you commit to an order.
Which crops go on the north side of the bed?
The tallest ones. Rutgers says to place the tallest growing crops on the north side so they do not shade lower plants. The sources do not list every tall crop, so use the mature height on the seed packet or plant tag as your guide for each row.
How far apart should the plants go?
Use the spacing for each crop. Rutgers says: “Use the table included in this fact sheet to help you plan.” The in-row and between-row figures in the table above are a starting point. The Oklahoma guide notes that its figures are for the row method, so a container or square-foot layout may need tighter spacing.
Where do perennials go in a small bed?
At one side or one end of the bed. The Oklahoma guide says perennial vegetables should sit there “for efficient operation.” The guide gives no distance, so measure the space the perennial needs and mark it on the sketch before you place any annual crops.
Sources
- https://udel.edu/academics/colleges/canr/cooperative-extension/fact-sheets/planning-a-vegetable-garden (opened 2026-10-22)
- https://njaes.rutgers.edu/FS129 (opened 2026-10-22)
- https://extension.okstate.edu:443/fact-sheets/print-publications/hla/oklahoma-garden-planning-guide-hla-6004-a.pdf (opened 2026-10-22)
- https://extension.unh.edu/resource/preparing-vegetable-garden-site (opened 2026-10-22)
- https://hort.extension.wisc.edu/articles/beginning-vegetable-garden-basics-site-selection-and-soil-preparation/ (opened 2026-10-22)
