Educate Your Eye: 1 Pound of Potatoes. Two medium-sized potatoes, big enough to comfortably fit in your hands, total one pound.
How many pounds of potatoes should I plant?
Divide the number by 10 to determine the number of pounds of potato seed you will need. For example, if you intend to plant 20 feet of potatoes, you will need 2 pounds of seed potatoes for planting. On average, 1 pound of seed potatoes plants 10 feet of potatoes.
How many potatoes can you grow per square foot?
Believe it or not, you CAN grow potatoes in a square foot garden. You need to have at least 10-12 inches of soil to grow potatoes. Simply take out the soil until there is about an inch or two left on the bottom. Plant one seed potato (or one piece) per square foot.