Can a young plum tree live with the bark off of one side?

Yes, a young plum tree can survive with the bark removed from one side, but its health and growth may be compromised. The bark is essential for protecting the tree and facilitating nutrient transport, so damage can lead to stress, increased susceptibility to disease, and potential death if the damage is severe. Providing proper care, such as watering and monitoring for pests, can help the tree recover. However, it's best to avoid such damage whenever possible.