Flower Bed Design - How to Design a Garden Bed (2024)

Learn the basic design principles, styles and plant layouts for garden beds.

Gardens should always be considered highly personal works of art. As in any kind of art, taste will vary greatly with every person having a different opinion of what constitutes beauty. I think understanding basic design principles, is important for two reasons. First, if you know the rules you can break them in an intelligent way. Second, it helps give you a comfort level that what you design won't be a complete disaster. However, in the end the only thing that really matters is that you love your garden - your opinion is the most important one.

There are two basic types of garden beds; island beds and borders and two basic styles of gardens; formal and informal. We will start by covering the two types of beds and then move onto the two styles.

A border is anchored by a backdrop and I think these beds are easier to visualize than island beds, at least for me, since the background will help define the size of your new bed. The backdrop might be a house, a hedge row, a fence, or anything else that gives you a fairly solid background. Borders are viewed from only one side.

A flower border is generally, but not always, long and narrow. How deep your bed needs to be will partially depend on how long the bed is. The proportions of the bed are important. A short bed doesn't need to be as deep, a 3 foot by 8 foot bed will look right at home. A longer bed will need more depth, if possible. A 12 foot by 100 foot bed will look proportional.

Most home gardens are more likely to have beds that fall between 5 and 50 feet long. In this case depth should range between 3 and 6 to 8 feet deep. Any bed that is deeper than 4 feet (you can only reach so far) will need to have access to the interior of the bed for weeding and other maintenance purposes. Paths or stepping stones are common ways to provide access. Here are some examples of borders:

Flower Bed Design - How to Design a Garden Bed (1) Flower Bed Design - How to Design a Garden Bed (2) Flower Bed Design - How to Design a Garden Bed (3)

The photo on the left shows a narrow border at the Missouri Botanic Garden, in the center is a border along my front porch, and on the right is a great orange-toned border.

Island beds, on the other hand, are not anchored by a backdrop and can be viewed from all sides. They often have a center anchor. This anchor isn't necessarily right in the middle. It can be offset to one side for an asymmetrical look. Center anchors can be anything from a tree, shrub or large perennial to a piece of statuary or a large container, even a bench or trellis/arbor can work as a center anchor.

Island beds tend to be more round, square, rectangular or amorphous. They are rarely long and skinny. As with borders, their length and width needs to be somewhat proportional, so longer beds need to also be wider. Island beds can be small, a mailbox planting for instance, but are more often large. Since island beds can be reached from all sides; only beds larger than 6 to 8 feet across will need access for maintenance. Here are some examples of island beds:

Flower Bed Design - How to Design a Garden Bed (4) Flower Bed Design - How to Design a Garden Bed (5) Flower Bed Design - How to Design a Garden Bed (6)

The photo on the left shows an island bed with a tree as the anchor, the structure on the right is open so you can see this bed from all sides. The photo was taken at the Boerner Botanic Garden in Hales Corner, Wisconsin; a great garden if you get a chance to visit. In the center is a butterfly wing shaped bed taken at the Michigan State Children's Garden. The photo on the right shows a series of small island beds that use mailboxes as their anchor. The photo was taken at the Missouri Botanic Garden.

In general, plants in borders are arranged with tall plants (taller than 2 to 3 feet) placed in the back, mid-size plants (10 inches to 2 to 3 feet tall) in the middle, and short plants (less than 10 inches) in the front of the bed. It is best to use groupings or drifts of plants for a natural feel. Look at the border planting plan below. Tall plants are in brown, medium-tall plants are in blue, medium-short plants are in teal, and short plants are in dark green. Note that the plants are grouped rather than in rows.


The other thing to consider when planning your plant placement is that it is often best to use groupings of at least 3 of the same plant together. One plant alone often does not have enough impact, where a grouping of 3, 5, 7 or more will have good impact. Odd numbers tend to look better than even numbers. This is especially true of smaller plants where groups are necessary to have impact. Short plants can be used in long narrow plantings to create borders on the edge of a bed.

There is an exception to the plant 3 or more plants rule. In general, if a plant is large enough, think shrubs or large perennials, it can hold it's own without being grouped with other plants. Usually, only back of the border plants can stand alone. Scroll back up to see photos of borders.

Island beds work on the same principles as borders, but rather than having the taller plants in the back. The taller plants are in the middle of the bed or centered on the anchor plant. In the design below, the bright blue dot is the anchor, the brown are the tall plants, the pink are the medium plants, and the dark blue are the short plants.

Flower Bed Design - How to Design a Garden Bed (8)*

You will note that the plants are grouped in drifts with the taller plants in the middle of the bed and then getting progressively shorter as you get toward the edge. Your design doesn't need to be rigid, you can see above that some medium sized plants come to the edge of the bed and some short plants are right next to tall plants. The tall to short progression is simply a rule of thumb, not a hard and fast rule. Scroll back up to see photos of island beds.

Let's talk now about the two styles of garden. Gardens generally are either formal or informal. Formal gardens tend to use distinct geometric shapes for their layout; circles, rectangles, triangles or long straight lines. Plant spacing, color, and layout are all very precise. Here are some examples of formal gardens:

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On the left is a circle knot garden, in the center is a formal garden with lots of color, but very geometric shapes, and on the right is a formal garden with a clipped boxwood hedge to create the form of the beds. All of these photos were taken at the Missouri Botanic Garden.

Informal gardens tend to use curves and free flowing forms. The color combinations are more relaxed and varying plant heights will mingle together. I think most home gardens tend to be this type. Here are some examples of informal gardens:

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The photo on the left is from the Ball Seed Company garden in West Chicago, Illinois and shows, more or less, a wildflower meadow. The center photo is from the Boerner Botanic Garden and shows a curving walkway bordered by colorful plantings. The photo on the right is from The Champaign County (Illinois) Master Gardener Demonstration Garden and shows a great informal garden using bright colors.

Learning the types and styles of gardens and the general principles of plant placement will help you design gardens for your own home. To learn about using color in your garden click here.Of course, once you design a bed you have to actually dig and prepare it. For more information on actually preparing your bed for planting, click here.

*Planting plans developed by the University of Missouri Cooperative Extension Master Gardener program.

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Flower Bed Design - How to Design a Garden Bed (2024)


Flower Bed Design - How to Design a Garden Bed? ›

Consider placing taller plants towards the back or center of the bed, gradually transitioning to medium-height and then shorter plants towards the front or edges. This arrangement provides a sense of depth and ensures that all plants receive adequate sunlight.

How to plan a flower garden bed layout? ›

Generally, you want to organize your plants like you would a class photo or set of bleachers, with the taller ones behind the shorter ones. Or, if you're working on an island garden in the middle of your yard, the tallest plants should be in the center. Consider Bloom Times.

How to design a landscape bed? ›

Let's examine the process for helping this feature come to life.
  1. Consider Goals. First, consider the goals you want to achieve for your landscape beds. ...
  2. Pick Your Location. ...
  3. Select Style And Colors. ...
  4. Ponder Plants. ...
  5. Place Plants Before Planting. ...
  6. Remove Grass And Add Soil Amendments. ...
  7. Add Mulch and Plants. ...
  8. Consider A Focal Point.

How do I plan my garden layout? ›

Sketch out your plan on paper. Use graph paper and draw to scale, keeping in mind the mature size and habit of each kind of plant. Site larger plants, like corn and tomatoes, where they won't cast shade over shorter plants. Choose compact varieties if you have limited space.

How to arrange flowers in a garden bed? ›

When layering your garden bed, plant tall, full shrubs in the back row. Medium-sized perennials belong in the middle row. Finish it off with a low-growing mix of colorful annuals and perennials in the front row. A nicely layered garden bed ensures maximum visual appeal once all the plants mature.

How do you arrange perennials in a flower bed? ›

Plan to position taller-growing plants to the back of a traditional border or the center of an island bed; array lower growers at their feet. If you need help visualizing, some software programs let you see what your garden will look like as plants mature.

How to decide on a flower bed shape? ›

Determine the Garden's Shape and Size

To get an idea of how your flower garden will fit into the rest of your landscape, use a garden hose to outline the edges before you start digging. Then, walk around the bed; look at the proposed garden from every viewpoint.

How should I orient my garden beds? ›

A north-south orientation is best for low-growing crops, allowing direct sunlight to reach both sides of the bed. For taller crops such as pole beans, peas and tomatoes an east west orientation works best. Leave enough space in between beds to easily maneuver around.

How to mark garden beds? ›

Simply grab your garden hose and use it to outline your ideal garden bed on your lawn. This method is helpful if you're creating curves and arches in your flower beds. If no rain occurs, marks from the hose will be left in the grass, so you can easily remove the hose and start digging around the marks.

What is the most efficient garden layout? ›

Square foot gardening is an efficient and space-saving technique that involves dividing your garden into small, manageable squares. Each square is typically one foot by one foot and is planted with a specific number of plants depending on their size.

What vegetables can not be planted together? ›

14 Vegetables You Should Never Plant Together—Gardening Experts Explain Why
  • 01 of 14. Beans and Onions. ...
  • 02 of 14. Tomatoes and Potatoes. ...
  • 03 of 14. Corn and Tomatoes. ...
  • 04 of 14. Tomatoes and Brassicas. ...
  • 05 of 14. Cucumber and Squash. ...
  • 06 of 14. Lettuce and Celery. ...
  • 07 of 14. Fennel and Tomatoes. ...
  • 08 of 14. Peppers and Cabbage.
Jan 16, 2024

What plants are good for flower beds? ›

In addition to perennials flowers like coneflowers, black-eyed Susans and daylilies, plant perennial herbs, ornamental grasses and flowering shrubs for added height and texture. You can pop in annual flowers for extra color in-between bloom time.

How should flowers be arranged for beginners? ›

Use a formula. There is an order of operations in floral design that leads to the best results! The formula is first foliage, then focal flowers, then filler flowers. By placing the foliage first, you have a bit more control over creating the overall shape and form that the rest of your flowers will fit into.

How to design a shrub bed? ›

Your tallest plants—often trees or shrubs—will be at the back. Your middle layer will be filled with mid-sized plants, which could be shrubs, grasses, and perennials. The front layer of the garden bed should be the lowest-growing plants. Again, some low-growing shrubs are great for this role.

How wide should landscape beds be? ›

How wide? In a small yard with limited space, 2- to 3-foot-wide borders may make the most sense. The rule of thumb for traditional English perennial borders is that they need to be at least 6 to 8 feet wide to accommodate the range of plants needed to provide varying heights and continuous bloom.

How high should landscaping beds be? ›

A 12-inch raised bed is a great minimum height for growing lots of delicious plants in the kitchen garden. If you want to grow larger vining plants like tomatoes, squash, or zucchini—plants that sprawl and tend to draw a lot of nutrients from the soil as they grow—you might move closer to an 18-inch raised bed.

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