If you got them at the grocery store then don't bother planting them they will do poorly because they where sprayed with a growth inhibitor.
It is best to buy seed potatoes. here goes potatoes do best in well drained sandy loam make sure it is hill-ed up then place the potato on the top of the hill then cover a couple inches of dirt then with straw adding more straw as the potato leaves show themselves and are about 6 inches or so tall. try not to over water them as they will rot or become hallow moist is ok wet not so good. once they bloom and start to die off you can begin harvesting them. a tower or tires work well too it just depends on how much you plant. there are lots of how to build potato towers on you tube. all day direct sun and planting as early as mid april is ok
It is best to buy seed potatoes. here goes potatoes do best in well drained sandy loam make sure it is hill-ed up then place the potato on the top of the hill then cover a couple inches of dirt then with straw adding more straw as the potato leaves show themselves and are about 6 inches or so tall. try not to over water them as they will rot or become hallow moist is ok wet not so good. once they bloom and start to die off you can begin harvesting them. a tower or tires work well too it just depends on how much you plant. there are lots of how to build potato towers on you tube. all day direct sun and planting as early as mid april is ok