Deer proof garden fence! Last year it was the rabbits - this year it is the deer. I have to get something up. Another site said it only needs to be 3 feet high to deter them. They won't jump it unless they're scared or can't find anything else to eat. (I have neighbors with gardens)
Use a Fence. When all else fails, protect your beds and borders with a low fence. Here, a low picket fence was all that was required to keep this bouncy bruiser at bay. You'll be surprised at how even the most meager fence can be a visual barrier for your dog. Here's a Hint: Check your fence once a month to be sure your pet hasn't dug an escape route or gnawed a hole through a hidden corner.
I made chicken-wire fences for my raised beds years ago -- with three sides fixed in place and one removable panel. The removable panel fastens to the fixed sides with wire ties. But is another (and perhaps handier) way to secure them.