I'm so glad you asked. Deer do not like the mint scent of the bee balm so they steer clear of it. And better yet, it is both deer AND rabbit resistant! Since our dog is getting older and is not into chasing rabbits as much as she used to, the bunnies have set up a maternity ward in my yard. They have eaten my coneflowers down to the ground, but have never once touched the bee balm 4 inches from them. Which makes me think I need to spray my coneflowers with a mint scent similar to my infamous Homemade Squirrel Repellent. The bunnies will just have to live off the abundant clover in the yard.