Create a permaculture garden in a small space: yard, patio, planter box

In this article 8

Permaculture was developed using images of large plots, forest gardens, and ponds. It is often concluded that it does not apply to a 15 m² courtyard or terrace. This is a misunderstanding: permaculture is a design method, and a design method applies all the more effectively when space is constrained.

On a large plot, you can afford to waste space. On 15 m², every decision counts—which is exactly the playing field of permaculture design. This guide covers the design of a small space; for container-growing techniques, see Balcony Vegetable Garden.

Observe: what changes in a constrained environment

The parameters are the same as in a garden, but their values are more extreme and change quickly over just a few meters.

Light is the number-one limiting factor. In a courtyard surrounded by walls, count the hours of direct sunlight in several seasons. A space that gets 5 hours in June may get none in December. Also note the reflected light: a light-colored wall reflects a useful amount of light, while a dark wall absorbs it and releases heat.
Wind is funneled. Between two buildings, a Venturi effect can double wind speed compared with the nearby open space. Young plants cannot withstand it.
Heat accumulates. Walls, paving slabs, and concrete release heat at night. This is an advantage in spring and autumn—gaining two to three weeks at each end of the season—and a serious constraint in July.
Water doesn't arrive on its own. Under a balcony, awning, or tree, an area may receive no rain at all. Check this—it is a classic trap.

A point-by-point assessment

The preliminary assessment is the same as in a garden — see Planning by Zones and Exposure — but it must be done point by point: in a courtyard, two spots two meters apart can be completely different.

The key principle: think in volumes, not surface area

This is the mental shift that unlocks a small space. You don't have 15 m²: you have 15 m² of ground, plus dozens of square meters of walls, plus all the volume between them.

Layering

In a forest, vegetation occupies several superimposed layers. The same principle, scaled down:

Climbing layer — walls and trellises: pole beans, peas, climbing nasturtiums, lightweight squash, grapevines, kiwis.
High layer — staked tomatoes, corn, sunflowers, a potted or espaliered fruit tree.
Middle layer — herbs, Swiss chard, cabbages, peppers.
Low layer and ground cover — lettuce, radishes, strawberries, creeping thyme, purslane.

On a well-exposed wall, a 2 m by 2 m trellis offers as much productive surface as half your yard — with the footprint of a pot.

Light-colored wall supporting a trellis of bean plants in pods, a staked tomato in front, Swiss chard and basil in a galvanized container, lettuce and strawberries at ground level on mulch: four layers stacked over two meters in height — Four layers over two meters in height: climbing beans, staked tomatoes, Swiss chard and basil, lettuce and strawberries at ground level. The total footprint is less than one square meter.

Density and staggered planting

Two techniques double the yield of the same area without magic:

Combining different cycles — radishes and carrots in the same furrow: the radishes are harvested before the carrot needs the space.
Succession planting — a bed should never remain empty. As soon as one crop is removed, the next is already ready in a pot, to be transplanted that same day.

See The best vegetable combinations for the kitchen garden.

Zoning a small space

Zoning still makes perfect sense, even when compressed — it simply plays out in meters instead of tens of meters.

Zone 1 — along the path from the door to the rest: herbs, cut-and-come-again lettuce, radishes. Things you pick while cooking.
Zone 2 — the main containers or beds: tomatoes, zucchini, beans.
Zone 3 — the pots at the back, climbing plants on the opposite wall: things that are managed once a week.
Compressed Zone 5 — an insect hotel, a flowerpot of wildflowers left to go to seed, a small pond in a container. Even half a square meter makes a difference for beneficial insects.

Forty centimeters is enough

Reduce circulation paths to the strict minimum. A 40 cm passage is enough where we instinctively plan for 80, and every centimeter gained on the path can be cultivated.

Closing cycles on a small scale

Self-sufficiency is more difficult in a small space, but two cycles can be closed very effectively.

The material cycle

A worm composter processes a household's kitchen waste in the volume of a bin, without odors, indoors or outdoors. It produces very rich compost and a liquid that needs to be diluted. It is the only realistic solution when you do not have room for a pile — traditional composting requires about one cubic meter to work properly. See Composting.

Supplement it with what the space produces: collected leaves, grass clippings, coffee grounds, and torn brown cardboard used as mulch.

The seed cycle

This is the easiest cycle to close, and paradoxically easier than in a large garden: with few varieties grown side by side, accidental cross-pollination is rare. One tomato, one bean, one lettuce, and one basil plant are enough to make you self-sufficient in these species from the first year. See How to save your seeds.

The water cycle

More difficult: little collection area and containers that dry out quickly. What works: a rain barrel connected to even a small downspout, systematic mulching of all pots, and grouping containers together — tightly packed pots protect one another from lateral evaporation.

Bringing wildlife to the city

This is the most common objection: “there is no biodiversity at my place.” In reality, beneficial insects quickly colonize a space that offers them three things.

Flowers spread throughout the season — this is the main condition. Adult ladybirds and hoverflies feed on nectar and pollen; without flowers, they will not settle or lay eggs. Aim for continuous flowering from March to October: borage, calendula, phacelia, and herbs left to flower. See our nectar-rich plants.
Water — a simple saucer with pebbles for insects to land on without drowning.
Shelter — grouped hollow stems, a woodpile, an upturned pot filled with straw, and an uncleaned corner in winter.

Terracotta saucer filled with water and flush pebbles, placed on a straw mulch at the foot of a flowering borage plant — The pebbles must be flush with the surface: an insect that falls into the water cannot get out. Refresh the water every two to three days in summer — this also prevents mosquitoes from settling there.

A small, well-designed urban space can be richer in insects than a mown suburban lawn — the issue is not the area, but the diversity of resources available.

Courtyard, terrace, planter: what changes

The enclosed courtyard

Advantages: accumulated heat, wind protection, and a often-mild microclimate. Constraints: low-angle light and stagnant air that encourages fungal diseases. Space plants generously despite the lack of room, water at the base, and make use of light-coloured walls.

The terrace or roof

Advantages: maximum light. Constraints: strong winds and scorching heat in summer. Plan for an open windbreak rather than a solid one.

Terrace and roof: check the load-bearing capacity

A 40 L container filled with wet soil weighs around thirty kilograms. Distribute containers along load-bearing walls rather than in the center, and ask your building manager or a professional for advice if in doubt.

The planter and windowsill

This is zone 1 par excellence—the best place around the home for herbs, the ones you snip while cooking. Don't waste this spot on plants harvested once a year.

Frequently asked questions

Can you really talk about permaculture on 10 m²?

Yes, if we are talking about design: observation, zoning, layering, companion planting, ground cover, and closing loops. What remains out of reach is food self-sufficiency and living soil in the ground—but these are not criteria for defining the method.

Do you need open ground?

No, but if you have even a single square meter, reserve it for crops that benefit most from it: perennials and long roots, which suffer most from being confined to a pot.

Which perennials should you prioritize in a small space?

They offer the best return for the effort: rhubarb, sorrel, chives, tarragon, mint (always in a pot, as it is invasive), thyme, oregano, and artichokes if space allows. See our perennial plants.

How do you manage green waste without compost?

A worm composter for the kitchen, and surface composting for everything else: finely chopped garden waste breaks down very well directly as mulch in containers. Nothing leaves the garden.

And what should you do with the space in winter?

Don't leave it empty. Lamb's lettuce, spinach, arugula, and perennial herbs can stay outdoors; empty containers should be covered with mulch or green manure. Bare substrate all winter compacts and becomes depleted.

Key takeaways

The essentials in three lines

Think in terms of volume rather than surface area, place things according to how often you visit them, and give beneficial insects the three things they seek—flowers, water, and shelter. A small space will not produce all your food, but it can provide all your culinary herbs, some of your salads, and a level of biodiversity that often surprises the gardener themselves.

To go further

To get started in a small space: our culinary herb seeds, our year-round seedlings, and our pollinator-friendly plants.