Container-grown potato plants are ideal for gardeners who don't have a lot of garden space or those who want an easily managed and harvested potato crop that requires no digging. Some people also enjoy growing potatoes as houseplants for their lush, green foliage. Whatever your reasons for growing potatoes, provide them with the right potting environment to ensure a healthy and vigorous growing vine.
Plant the potatoes in a pot that's at least 1 foot across, 18 inches deep and has drainage holes at the bottom. The bigger the pot, the better.
Fill the pot to within 1 inch of its brim with a sterile potting soil mix, available at garden stores and nurseries.
Mix in a standard houseplant fertilizer into the soil at the rate listed on its label, since potency varies by product.
Plant one seed potato in the center of the pot. Orient it so that one of its eyes--the dot on its surface from which the potato shoot grows--is facing upward. Bury it 3 inches deep.
Water the pot once a day or as needed to keep the top 3 to 4 inches of soil moist. Reduce watering when the potato shoots appear, irrigating the pot only when the top 2 to 3 inches inches of soil feel dry to the touch. Apply enough water so moisture drips out of the pot's bottom holes
Place the pot in a location that receives a minimum of six to 10 hours of sunlight daily.
Harvest the potato after its surface vines have died. Turn the pot over and empty its contents to easily sort out the potato tubers.