When planting and growing potatoes in old tires take the first tire and then cut the tire so you remove one of the sidewalls.
Then fill the tire with soil such as potting soil and then plant the potatoes in the soil.
Then stack a few more tires on top.
To plant and grow potatoes in tires you fill the tires with soil and then plant your potatoes as normal the same way you would plant them in pots and in the ground.
When growing potatoes in containers such as tires, the spacing is the same, but without any rows about 10 to 12 inches between tubers.
For most tires, this translates to three potato plants per tire or four at most.
Choose a sunny spot in your yard, garden or on a patio or balcony.
Stack two or three tires and fill them with damp earth and compost to just over half the depth of the stacked tires.
Then place 4 or 5 seed potatoes in the stack, about 2 inches deep, with the eyes or shoots facing up.