Grow apple trees...
5. Thoroughly water in, with at least a nine litre (two gallon) can of water. Soak the soil around your tree to settle it down among the roots. Top up with more soil to fill in any holes. Give it a can of water once a fortnight to keep surrounding soil moist so new roots can grow into it.
6. Tie side branches to support wires running along the fence from post to post. Fix each arm in several places with string or wire ties. Check these regularly as the branches quickly grow and swell, making the ties too tight, cutting into the bark and restricting growth.
7. More arms can be formed in winter by cutting out the main shoot tip about 45cm (18in) above the last tier. Shoots develop from this. Leave one to grow up and gently tie those on either side to horizontal training wires at the end of the year to form the next tier.
8. Regularly tie down new growth at the ends of each branch to stop it growing upwards. Tie down branches at the end of each season to form new tiers. This process can be continued for many years, forming more and more arms to cover a wall or fence.