Staking a Young Tree
When a tree is in the young stages, one of the most vital things you need to provide for it in addition to water and nutrients is support. If you don’t hold up the tree somehow, it might end up bending in a certain direction and growing extremely crooked for the rest of its life. So no matter what, you should always have some kind of support.
The most popular method of keeping young trees upright is to put long stakes into the ground on either side, and tie loops around the tree. Each loop should be fairly loose to allow for further expanding of the trunk. Lots of people just have a stake on one side of the tree, but this is not a good practice because it generally doesn’t allow for further growth of the tree.
You should only be staking your tree if you think that wind and other forces might be literally moving the ball of roots within the ground. Your staking should prevent all of this movement, because this is the most harmful thing that can happen to a young tree. It causes the roots to be in motion too much and not be able to properly get a hold on the soil so that the tree can develop normally.