So I'm thinking about getting an apple tree. Does the tree need to be pollinated to grow apples? I don't think there is any other apple trees within 5 miles of me, will the fruit still grow? (I don't understand the biology of fruit trees very much)
Most apple trees will not fruit without being cross-pollinated by another apple tree of the right group - some are described as self-fertile but still fruit better when they have a pollination partner.
Here is a list of trees and which other apples are in the right group to pollinate them.
and if you scroll down there's loads more information for you.
Dove's right, you'll need a pair of them - I've used the website she has posted and it is good once you get your head round the code system! I think the other alternative is to plant an apple tree with a crab apple, as that will also pollinate anything (think that gets mentioned on the same site, coz otherwise I don't know where I would have picked that fact up).
Well worth getting one though - they are trees with real character