Deer will eat virtually anything and sunflowers are perhaps on the top of that list. Deer can actually eat many things that the human stomach could never process.
What people often forget about deer is that they’re incredible jumpers and your 3-foot fence just isn’t going to cut it. You’re going to have to invest in a 7-foot fence at the bare minimum if you want to keep deer out of your garden.
These plants are packed with calories and deer desperately need them to survive. This puts you, the gardener, at odds with the animal and you’re going to have to protect your garden.
Deer, while being lovely animals, can be a real bother when it comes to gardening. There aren’t many plant species they won’t eat, and sunflowers are, unfortunately, one of their favorite plants.