I just purchased 2 new Catmint plants. These plants are purported to be effective against Deer.
This is a review I found. It seems that deer detest this pretty blue flower.
Catmint is a super-hardy perennial that’s not only deer resistant but drought resistant as well. It’s a standout in containers, beds, or borders. Cut it back hard after that first flush of brilliant purple flowers, and you’ll be rewarded with another bloom before the end of the season.