Symbolic of God’s protection.
If the hedge is made of thorns it symbolizes a lazy person, Prov. 15:19
A protective partition, symbolically separating one from the enemy
Isolation, obstacle, but also natural living space.
The border between two worlds (in mythology, witches are said to sit on hedges, one leg in one world, the other leg in the other world).
To see hedges in your dream symbolizes obstacles that are blocking your progress.
To dream that you (or a gardener) are trimming a hedge, means you have accepted the restrictions you are facing and are now making the best out of a negative situation.
1. Barrier or obstacle.
2. Emotional boundary (often positive if the hedge is cared for and trimmed).
See Boundaries, Wall and Fence.