Potatoes are plants that produce tuberous roots. Although the plant will thrive in a wide variety of soil, it prefers sandy loam. While the spreading habit of the potato makes it seem like an unlikely candidate for containers, you can grow potatoes container-style in pallets covered with hay. The resulting tubers are smaller than soil-grown potatoes, but are much easier to harvest. The best time to plant potatoes in pallets is early-to-mid spring.
Place 4 pallets on their sides with the corners touching to create an upright box. Wire the corners of the pallets together to create a bin. Move the bin to a location that receives full sunlight and has well-drained soil.
Line the bottom of the bin with several sheets of newspaper and place seed potatoes 1 foot apart over the newspaper. Seed potatoes are small potatoes with many eyes. They sprout the potato vines that feed the potato plant, and the roots that create new potatoes.
Cover the seed potatoes with a 10-inch layer of hay or mulch.
Add more mulch as soon as green shoots sprout out of the top of the mulch layer. Continue to add mulch any time that the potato plants appear above the mulch until the point that the plants begin to turn yellow and die back.