I love daylilies and the many deer around here were awful about decimating them. I planted one bed that was just covered in buds ready to bloom and overnight the deer ate them down to bare ground. I tried everything and nothing kept them from the daylilies, including grinding up garlic and making a spray. I went to Costco and got one of the large bags of garlic, divided the cloves and planted them all around and next to each daylily. The deer left them alone. I guess the only other thing would have been an electric fence. They stare at the chickens' electric fence but don't go near it.