If you find your ball in front of a tree or bush you may find your swing is hampered by this hazard.
To help you escape every time you need to understand that the clubface affects the balls direction more than the swing path.
If you cannot get enough backswing length to generate enough power to get the ball to the green, you need to do two things:
1 - Keep the clubface pointing at the target as you would do for a normal shot
2 - Aim your body to the right of the target making sure when you swing along the line of where your body is aiming you will miss the tree with the club.
Now your swing will not be hampered by the tree, you will be able to generate the power needed to hit the distance you require.
This will feel strange as your body will be aiming to the right of the green and your clubface pointing to the target. Trust the technique and just swing the club.
As the clubface is pointing at the target the ball will set off on that line now with enough power to get you the distance.