Use I Must Garden All-Natural Squirrel Repellent to protect against the destructive chewing of squirrels. The formula is safe for people, pets and the environment and can be sprayed directly onto buds, flowers, leaves, bulbs, garden furniture, flowerpots and more. I Must Garden All-Natural Squirrel Repellent contains a blend of castor, cedar, clove and lemongrass oils and white pepper.