There is no need for a large garden bed if you want to grow potatoes at home. Whether you are growing them on a patio, a balcony, or other small space, potatoes are a welcome addition to a container garden. Like many other vegetables, potatoes can thrive when planted in a pots and containers. There are some special considerations to keep in mind when growing potatoes in pots, otherwise the tubers may be damaged by rot or other cultural concerns.
Fill a large planter with a quality, pre-moistened potting soil. Use a pot that is at least 16 inches deep and has drainage holes in the bottom. Choose a pot 10 to 12 inches in diameter for a single potato plant, or 24 inches in diameter for two plants.
Cut apart the seed potatoes with a clean knife. Cut them into cubes that are approximately 3 inches in size. Cut so each cube has at least one visible growing eye on it.
Plant the seed potatoes 4 inches deep in the pot. Plant the seed piece in the center of the pot for single plants, or space the pieces 10 inches apart in large pots.
Water potatoes when the surface of the soil begins to feel dry. Water until the excess moisture drains from the bottom of the pot, ensuring the soil is equally moist throughout.
Place a 2 inch layer of straw mulch on top of the soil in the pot once the potato plant is about 6 inches tall. This protects tubers near the soil surface from sun damage.
Fertilize the potatoes with a liquid plant food formulated for container vegetable gardens. Follow label instructions for exact application methods and amounts.
Harvest the potatoes once the foliage begins yellowing and ding back. Dump the container out on a tarp and separate the potatoes from the soil to harvest.