My first thought was a firing squad after they finish with the groundhogs. It's advisable to put some reflective tape or something on the thin wires anyone might string up between posts or trees. A human could easily not see it if they don't know it's there (or forget it's there if they do know) and get injured if running into thin wire especially if it were at throat height. The 2 fences 4 feet apart is often suggested by extension agencies and seems like a better solution. You could plant things you have found "your deer" don't bother as much keeping in mind it not grow too high to shade you veggie garden. Found this interesting site 'Athens Select' for heat & humidity tolerant plants tested by Alan Armitage. Suppose you know about them since they're marketed in the gulf states. Good luck with your hunt for a solution. Here is a link that might be useful: Athens Select -Tested Heat/Humidity Tolerant Plants

A herd of tame deer pretty much lives full-time on our property and they love rugosa roses here. They are browsers and try most things at least once, even eucalyptus, but they've never touched rosemary or lavender. I have many phormiums and a few palms outside of the fenced garden and they don't touch those either. The phormiums could make a nice hedge - there are different sizes available. I only watered mine the first summer, so they might work in your situation, especially if you mulched. The deer will eat phormium flowers, at least here. It's true, what works for one person doesn't always work for another. I had a list of deer resistant plants from a nursery on Vancouver Island and it suggested that deer never touch peonies. Ha! Not "my" deer, they love them.

The evergreen hedge is a tougher one to figure out. We have some great evergreen laurels at my house, but the deer LOVE those things! My laurels are growing pretty well now, but that's mostly because our deer population has shrunk in recent years with more houses being built all around and up the hill from us. The deer are mostly here in the winter, but for some reason, I only get a few in my backyard these days, where the laurels are. I know some people make hedges out of arborvitae, but I read that some varieties are attractive to deer. You might do a little research and find that some kinds are OK. I've been wanting to plant a few Thuja 'Green Giant' trees, which are a kind of arborvitae, and I've read that some people cut them into hedges. They are said to be deer resistant, but I think that's not the same as deer proof. Depends on how desperate the deer are. I have some leatherleaf viburnums (Viburnum rhytidophylloides) that are almost evergreen, and the deer have left them alone. They have large leaves that hang on the plant in the winter and give more privacy than some other deciduous shrubs. They are evergreen in milder climates. They grow fast, too. Someone gave me a book on deer-proofing the garden, but it was after I already bought all my landscape plants, so I never used it. Can't say how good it is, but you might find a good book at Amazon.com if you search for deer proof plants or deer proof gardens. Good luck!

Deer LOVE loquats (at least the leaves). Deer WILL nibble on Photinia if there is not much else green in your (or your neighbor's) Winter landscape. I purchased some Ligustrum japonicum 'Texanum' because have read that they are deer resistant but they are not in the ground yet, so not sure. Osmanthus 'Goshiki' (forgot the species name on it), is deer proof but not sure it is a fast grower. Magnolia grandiflora is deer proof BUT, they DEER LOVE THEM during the rut and will mark them if they can get close (and they are much taller than your height requirement). 'English' Laurel and Bay Laurel are also highly resistant, as is Boxwood. My Holly (including; Nellie Stevens, Inkberry, Japanese), Fargesia bamboo, and rhododendrons are completely ignored. Butterfly bush too, which should be evergreen for you, (it is largely evergreen here). Others? Consider,Yuccas or Ornamental grasses too. These have worked for me, but not sure all are reliable in your area. Good luck!