In Ground Gardening

In-ground gardening means planting directly in your yard's soil, without frames or containers. It is the cheapest way to garden on any scale and the best way to grow space-hungry crops such as sweet corn, winter squash, melons and potatoes. It works well wherever the soil drains reasonably and can be improved with compost.

Choosing and preparing the site

  • Sun: at least 6 to 8 hours of direct sun for most vegetables.
  • Drainage: avoid low spots where water stands after rain. If the whole yard is soggy, raised beds are the better choice.
  • Water: close to a faucet, because you will water more often than you expect.
  • Away from trees: tree roots compete for water and nutrients well beyond the branch tips, and walnut trees release a compound (juglone) that harms tomatoes and other vegetables.
  • Test the soil before you start, so you know the pH and what to add. See building healthy soil.

Lay out permanent beds 3 to 4 feet wide with paths between them, rather than single rows across a tilled plot. You add compost only where plants grow, and the soil in the beds is never walked on or compacted.

Two ways to break new ground

Digging (traditional)

Remove the sod with a spade or sod cutter, then dig or till the soil 8 to 12 inches deep, working in 2 to 3 inches of compost. Wait until the soil is dry enough to crumble; digging wet clay ruins its structure.

Pros: you can plant right away; it breaks up compacted ground and mixes amendments deep in one go; it lets you remove rocks and roots.

Cons: hard work; repeated tilling breaks down soil structure and organic matter, harms earthworms and fungi, and brings buried weed seeds to the surface, so you get a flush of weeds; bare, tilled soil erodes in heavy rain.

No-dig (sheet mulching)

Mow the grass short, cover it with cardboard or several layers of newspaper, overlapping the edges, and soak it. Then spread 4 to 6 inches of compost or a mix of compost and topsoil on top, and plant into that. The grass dies and rots underneath, and earthworms work the organic matter down. Starting in fall gives it the winter to settle, but you can plant transplants into a spring-built bed right away.

Pros: far less labor; soil structure and soil life stay intact; fewer weed seeds are brought up; the mulch layer holds moisture.

Cons: needs a large amount of compost at the start; deep-rooted or tough weeds such as bindweed and Bermuda grass can push through and need follow-up; direct-sown root crops like carrots may struggle until the layers break down; mulch layers can shelter slugs.

Many gardeners combine the two: dig once to break hard or compacted ground, then switch to no-dig and add compost on top each year.

Keeping it going

  • Mulch beds and paths to keep weeds down and moisture in. See hay vs straw mulching.
  • Add compost every year, about an inch spread on top.
  • Rotate crops so the same family doesn't grow in the same spot year after year.
  • Plan the watering. In-ground beds hold water better than raised beds or containers, but a soaker hose or drip line under mulch still saves a lot of time.

For a side-by-side comparison with raised beds and containers, see garden types.