Growing potatoes in your garden allows you to sample more varieties than what you can purchase in the grocery store. Potatoes are well-suited to container gardening as well, so there is no need to prepare a large garden bed for them. Pot-grown potatoes require more vigilance, as the pots are more likely to dry out than a garden bed. This concern is more than made up for when it comes to harvest time, as there is no need to dig around blindly in the ground to locate the tubers. Instead, just dump out the pot and separate the potatoes from the soil.
Fill a 5-gallon pot ½ full with a lightweight potting soil. Mix in a 10-20-20 analysis timed-release fertilizer at the rate recommended on the package.
Set the pot in an area that receives at least six hours of sunlight a day. Place the pot on top of two or three bricks so it is elevated off the ground and excess water can drain freely from the bottom drainage holes.
Plant the seed potatoes 3 to 5 inches deep in the pot. Space the potatoes approximately 5 inches apart, planting about eight potatoes per pot.
Water the pot from the top until the excess liquid drains out the bottom. Water every one to three days, or when the top 1 inch of soil begins to feel dry.
Fill the barrel up to within 2 inches of the rim with additional potting soil once the potato plants are 8 inches tall. Bury the stems and leaves of the plants, as they will produce more roots and tubers off the buried stem segments.