We have lots of Mule deer where I live, and they love to visit the gardens. And, as much as I love nature and wildlife, I don't like it when deer eat my flowers and veggies. So, I have my own way of repelling deer, and it doesn't involve spraying chemicals, mixing garlic and onions, stinky coyote urine, putting up fences, or spending lots of money. It's also good for me, organic, is sustainable, and supports reuse. It's orange peels.
Mule deer in the backyard - sometimes there are 14 at a time.
Orange peels are probably not what you would think of when looking for deer repellent, and they are certainly not a research-based solution (although my research tells me otherwise). But, here in my gardens, as well as some of my clients, they seem to work wonders at keeping the deer from eating the plants. My method is simple: I take the orange peels, not orange pieces or whole oranges, rip them into about 2 -3 inch pieces, and scatter them around in my garden beds and at the edges of the paths. By using only the peels I avoid animals coming into the yard to eat the orange meat itself, and the peels decompose slowly so I don't have to reapply my deer repellent very often.
Sometimes I can get within a foot of the deer, as in this picture.
The deer don't eat these lilies, even though they are right along the path.