Good soil is built, not bought: the books recommend making it from organic materials you already have, and being patient while it improves.
Start with a test
The book says to test your garden soil before planting anything. Most vegetables grow well at a pH of 6.0 to 7.0, and a basic test also shows nutrient levels and texture, so you know what you are working with. It describes good soil as dark, crumbly, free-draining and earthy-smelling, while poor soil is grey, compacted, sandy or heavy clay. Poor soil can be improved, but the book is honest that it takes years of work.
Build it from what you have
For a sustainable off-grid garden, the book prefers building soil from organic materials available on your land rather than buying soil or fertiliser. Three methods it names:
- Compost: adding 1 to 2 inches a year (about 2.5 to 5 cm) improves the soil, feeds the soil life and provides nutrients.
- Cover crops: they protect the soil and add organic matter when turned in during spring.
- Mulch: a 3 to 4 inch layer (about 7.5 to 10 cm) of straw, wood chips or leaves around plants. A well-mulched garden needs less maintenance than a bare one.
Raised beds as a shortcut
If the ground is poor, raised beds let you fill your growing area with good soil from the start, as the book recommends for beginners. They warm up faster in spring, drain better and are easier to weed. You can then improve the surrounding land gradually.
Add manure with care
The book notes that chicken manure is a nitrogen-rich fertiliser and that rabbit manure can go on the garden without composting. Handle manures hygienically, and follow local advice on timing before harvesting crops you will eat raw.
A yearly routine
- Test the soil, and retest occasionally.
- Add compost each year.
- Sow cover crops where beds would otherwise stand empty.
- Mulch after planting, and top up as it breaks down.
- Note what grows well and where, and adjust.
Soil work also helps with water: mulch cuts evaporation, which is explored in garden watering strategies.
Soil is one chapter of the Survival Garden guide. For step-by-step DIY garden building alongside every other off-grid system, see The Off-Grid Survival Manual.