How long does it take for an apple tree to grow an apple?
It took the apple tree in my backyard about 10 years.
Apple trees are highly variable, and seldom can one reproduce the parent variety from seed. Commercial trees are almost always grown from a grafted cutting, and this additionally confers the ability to have a dwarf tree or a full growing variety at will. A newly grafted tree will take at least three years before it comes into production.