How Far Apart Should Apple Trees Be Planted?
Full-size apple trees should be planted 18 to 25 feet apart. Dwarf varieties only need to be spaced 4 to 8 feet apart, and mid-size trees should be planted every 12 to 16 feet.
Transplant Apple Trees
Fruit trees purchased from nurseries are generally between one and three years old. These immature trees are usually 4 to 6 feet tall and should have a well-developed root system. In USDA zones 6 to 8, apple trees can be successfully transplanted during the early spring, before leaves begin to sprout, or in late fall, once the tree has gone dormant for winter.