I would plant them at the usual recommended spacing - potatoes grow fast and will soon bush out to fill the space.' The main consideration for your seed potatoes is the size and healthiness of the shoots. You may be able to plant these, though there is always a risk of disease carrying over from seed potatoes you have saved yourself.The 24 inch spacing is often beneficial because the plants shade the soil and prevent high soil temperatures that inhibit tuber development. Plant seed pieces 10 to 12 inches apart and cover in a furrow between 1 and 3 inches deep. Small, whole, certified seed potatoes are often the best choice for home gardeners.
