- 1). Cover your prospective garden with about 8 inches of organic matter. Use mainly hay, but you can also add other substances such as leaves, rotting vegetables, straw and sawdust. Spoiled hay (moldy, damp or otherwise unfit for livestock) is even better and cheaper than fresh hay. The earlier you cover the area with mulch, the better. Rotting organic material will bolster the soil and prepare it to support the potatoes.
- 2). Pull back areas of the mulch and bury seed potatoes 1 to 2 inches beneath the surface of the soil. Space the seed potatoes approximately 12 inches from each other and the rows 18 inches apart.
- 3). Cover the buried potatoes with at least 8 inches of mulch again. Be sure that the mulch is lying loosely, as too much density can hinder the potatoes' growth.
- 4). Add more hay and organic materials whenever you see weeds emerging. Use enough mulch to cover the emerging weeds.
- 5). Harvest your potatoes at the end of their normal growing season, which usually is between 90 and 150 days.
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