If your home has hedges and bushes that are cloaking windows or other entry points, trim them down. High hedges and bushes provide the perfect concealment for burglars and can increase the odds of a break in.
Tulane University suggests that ground plants should be no higher than three feet tall, but a good rule of thumb is to have them trimmed so doors and windows are visible to neighbors. Planting thorny plants, like holly or roses, around ground-level windows can help as well.
If you have tall trees that could provide access to second-story windows, these should be trimmed as well to help prevent would-be intruders from scaling a tree and entering your home through a second-story window.
We also recommend placing some high gauge gravel around areas surrounding windows. If a burglar steps on this, it creates a lot of noise and acts as a further deterrent.
If you don't want to do all this yard work yourself, you can find a qualified landscaper on Thumbtack.