The Design Principles

Two different lists get called "the permaculture principles." The first is Mollison's, scattered through the Designers' Manual as directives. The second is David Holmgren's twelve, published in Permaculture: Principles and Pathways Beyond Sustainability (2002). This lesson uses Holmgren's twelve, because it is the cleaner list to hang a farm on, and because Holmgren says plainly that it is his contribution to a discussion rather than a settled canon.

Each principle below gets a worked example on a real farm, and a note on the older writer who said the same thing first. That second column matters. A principle with no ancestor is a slogan.

1. Observe and interact

Read the land before you move it. Where water runs, where frost settles, where the soil is thin. A hill in August is not the hill in February, and a design finished before the first full year of watching is a guess. Worked example: the Loop Farmstead plan starts every decision with a barefoot walk, and the first construction waits until the water has been seen in a storm. Columella put the same instruction in the first century, quoting Virgil and then adding his own rule that no farm is tilled without profit if the owner experiments with what it can best do.

2. Catch and store energy

Capture the surplus in the fat season and hold it for the lean one: water above the fields, grain in the loft, seed in the jar, wood under cover. Worked example: Cato told the owner to build ample oil cellars and wine vats "so that you can wait for high prices," and the Capitulare de villis made the estate storeroom hold its own tools and food so nothing had to be borrowed. Pelman keeps five years of wheat seed, dry, against a bad year.

3. Obtain a yield

A system that does not feed you will not survive to be improved. Holmgren's proverb is "you can't work on an empty stomach." Worked example: Pelman's staples, wheat, fava, and olives, cover about eighty percent of calories on rainfed ground, and they store without refrigeration. Cato's rule for the whole farm was the same: it must first provide what the household eats, then the surplus goes to market.

4. Apply self-regulation and accept feedback

Watch the result and change the plan, rather than defending the plan. Worked example: Cato's owner walks the farm the day he arrives, compares the overseer's report against the work he ordered, and adjusts. Columella goes further and tells the farmer not to trust authority, "former or present-day husbandmen," but to run his own experiments, because a field fitted to what it does best adds profit.

5. Use and value renewable resources and services

Build on what the sun, the rain, and the growing things replace each year, and let animals and plants do work you would otherwise buy. Worked example: Cato planted elms along the roads and fence rows so the leaves fed sheep and cattle and the timber was there when needed, and put reeds and willows on wet ground so the osiers tied the vines.

6. Produce no waste

Turn every output into an input. Manure, prunings, kitchen scraps, and dead stock are fertility, not rubbish. Worked example: Crescenzi chose manure by crop and purpose, composted it to raise its moisture, and rotated vetch and lupine to put nitrogen back. One caution from the farm's own research: a deep-rooted accumulator like comfrey lifts minerals from the subsoil, which is an elevator, not a mine. It moves what is already there and does not create it. The animal gut adds new mineral; the plant only raises the old.

7. Design from patterns to details

Lay out the whole before you fuss the parts. Worked example: Varro explained that ancestors planted in straight rows because "if each plant is set with due reference to the others they occupy less land and are less likely to screen from one another the influence of the sun and the moon and the air." He proved the packing by pressing whole nuts into a measure that held only two-thirds of what cracked nuts required.

8. Integrate rather than segregate

Put elements where their outputs feed each other. Worked example: Cato married vines to trees, and Pelman intercropped grain under his olive canopies, which saved more than 150 square metres over separate plots because a small farm can plant right up to the trunk. The Capitulare de villis required byres, pigsties, sheepfolds, fishponds, bees, and a garden of dozens on every estate, so each element closed a loop for another.

9. Use small and slow solutions

Work at the scale your hands and hours can carry, because yield per hour is the scarce coin, not yield per acre. Worked example: Pelman runs a complete diet on about 96 hours a year. A seed block of 100 to 120 square feet of Austrian winter pea can multiply thirty-three to forty-four times its own area. Small, and it compounds.

10. Use and value diversity

Spread the risk and fill the niches. Worked example: Pelman's 140 square metre garden carries about forty varieties on a nine-year rotation, twenty-five for winter and fifteen for summer, which is insurance against any single failure. The Capitulare de villis mandated a garden of dozens of herbs, vegetables, and fruit trees on every royal estate.

11. Use edges and value the marginal

The border produces more than the middle. Worked example: the Loop Farmstead plan gives its steep, thin, acid slope to perennials and cover, and its level dozer ground to the seed block, because each edge is used for what it does best. Pelman's intercrop at the tree line is an edge put to work.

12. Creatively use and respond to change

The plan is a hypothesis, and the season is the test. Worked example: the Loop Farmstead design treats each year's build as a dated fact and each year's yield as an observation, and refuses to call either one a proven claim until a full cycle has run. That is how a design answers change.