Certified GKH Gardening Expert
If your fence is lower than 6 feet tall, it very well could have still been a deer. Deer can clear fences up to 6 feet easily, even with no run up. They can clear higher fences if they have a run up to the fence. As they were small plants, it may have also been rodents, mice, rats or voles. A small family of them can chew apart small plants in a night.