Walk into an old woodland and look up, then down. Tall trees, smaller trees beneath them, shrubs, ferns and flowers, a carpet of low plants, vines climbing toward the light, and roots below. Every level is full. A food forest copies that structure, but with plants that feed people.
Stacking food in layers means more harvest from the same ground, less weeding, less watering and healthier soil. It also makes a place that's simply lovely to be in: shady, fragrant and full of birds.
- 1Name the seven layers of a food forest, with examples of each.
- 2Arrange layers so every plant gets the light it needs.
- 3Estimate how many plants a food forest patch needs.
- 4Use edges and clearings to grow more.
- 5Design a small food forest patch in layers.
The seven layers
In the 1980s, a British gardener named Robert Hart turned a small orchard on his farm in Shropshire into one of the first modern forest gardens. He described seven layers, and designers still use them today.
| Layer | What it is | Examples |
|---|---|---|
| 1 · Canopy | The tallest trees, often 30 ft and up | Chestnut, walnut, pecan, standard apple and pear |
| 2 · Low trees | Smaller trees under and between the giants | Dwarf apples and pears, plums, persimmon, pawpaw, mulberry |
| 3 · Shrubs | Bushes, mostly berries and nuts | Currants, gooseberries, blueberries, elderberry, hazelnut |
| 4 · Herbaceous | Soft-stemmed perennials that die back each winter | Comfrey, rhubarb, asparagus, mint, oregano, chives |
| 5 · Groundcover | Low plants that carpet and protect the soil | Strawberries, creeping thyme, clover, nasturtium |
| 6 · Roots | Plants grown for what's underground | Garlic, onions, potatoes, sunchokes, horseradish |
| 7 · Vines | Climbers that use the other layers as trellises | Grapes, hardy kiwi, hops, runner beans |
Light is the limit
A real forest is dark underneath, and most fruit needs sun. So a food forest is really more like the edge of a woodland, or a sunny clearing, than the deep middle of one. The trick is arranging the layers so light reaches every level.
- Tallest on the north. Put canopy trees on the north side and step down toward the south, so taller plants don't shade shorter ones (Permaculture Lesson 1).
- Keep the canopy open. In cool or cloudy climates, leave plenty of gaps between big trees. Hot, sunny climates can handle a denser canopy, and the shade protects plants below.
- Shade lovers underneath. Currants, gooseberries, pawpaw, mint and many mushrooms are happy in partial shade. Put them where the shade will be.
- Plan for change. In year three your food forest is sunny; in year fifteen it's shady. Plant sun lovers in the gaps now and shade lovers for later.
More edge, more food
The boundary between a woodland and a meadow is one of the richest places in nature. A wavy, scalloped edge to your food forest gives you more of it: more sun pockets, more shelter, more variety.
Sun rooms
Small sunny clearings inside the food forest are perfect for annual vegetables, a bench, or a beehive, protected on all sides.
How many plants?
A food forest isn't planted all at once, but it helps to know where you're headed.
How many plants in each layer?
| Layer | Grown size | Plants |
|---|
A rough starting point: each layer covers a share of the ground at its mature size, and the shares overlap because layers stack. Open designs leave more sun for the lower layers, which matters most in cool climates. Plant in phases, trees first.
Planting it over time
Trees and soil
Sheet mulch the area (Permaculture Lesson 3), plant canopy and low trees, and sow a nitrogen-fixing cover crop.
Shrubs and herbs
Add berry bushes, comfrey, herbs and groundcovers in the sunny gaps.
Vines and roots
Train vines up sturdy young trees or trellises, and tuck in root crops.
Edit and enjoy
Thin, prune, move plants that are struggling, and harvest from every layer.
A mature food forest is one of the most beautiful places a family can make: dappled light, birdsong, the smell of ripe fruit and herbs underfoot. It's an orchard, a garden and a woodland all at once, and children love to get lost in it.
Map the layers in a real woodland or garden
Visit a woodland, a park or an old garden and read it like a food forest designer. Then design a small food forest patch of your own, layer by layer.
You'll need
- A notebook, pencils and a clipboard
- A plant identification app or field guide
- A thermometer
- Graph paper for your design
- Your permaculture base map and zones
Do it together
- Find a woodland edge where trees meet open ground.
- Look up, then down. List the plants you see in each of the seven layers. Which layers are crowded, and which are empty?
- Measure the light. Take the temperature in full sun, at the edge and under the trees. How different are they?
- Sketch a cross-section showing the layers, like the diagram above.
- Design your patch. On graph paper, draw a 20 × 20 ft food forest patch with at least one plant in every layer, tallest on the north.
- Find its place on your base map, likely in Zone 2 or 3.
Little foresters
- Point to something in each layer, from the treetops to the groundcover
- Feel the difference between sun and shade
- Draw a tree with a vine climbing it
Older foresters
- Identify plants with a guide and sort them by layer
- Record and compare the temperatures
- Run the layer calculator for your patch
Keep the design. In Lesson 4 you'll turn its center into a fruit tree guild.
Abundance on every level
Once you see the layers, you'll never look at a woodland or a garden the same way. Empty ground starts to look like an invitation: room for a currant here, a strawberry there, a grapevine climbing the old pear tree. Every layer filled is more food and less work.
Next, we choose the right trees for your climate, so every one you plant can thrive.
Your Lesson 2 worksheet
Work through these together. Your answers save on this device as you type, and print cleanly for your records.
Progress record
What this lesson practices:
- ScienceEcosystems, plant needs for light, and how organisms depend on each other (NGSS 5-LS2-1, MS-LS2-2, 2-LS4-1).
- MathArea, circles and estimating (Common Core 7.G.B.4, 4.MD.A.3).
- InvestigationObserving, measuring and comparing conditions in different places.
- Art and designDrawing a cross-section and a plan view.
Standards mapping is a draft. If you use charter or ESA funds, confirm it with your education specialist.