Can a plant be reattached to itself after being cut?
I know animals can have limbs surgically replanted and still work. But can the same be said about plants? Could I cleanly cut down a tree, then stick it back on, and have it still grow into itself?
Yes. It's a science known as plant grafting. Though usually the process is used to attach one plant to grow from a completely different plant, it can be easily used to reattach a limb to the same/original plant.
I was throwing a shoe at a chicken in my yard and accidentally hit a lemon tree sapling tearing a big branch off. I just electrical tapped it back together and it was good as new within a few months
Yes, absolutely it's possible. You can take the leg of a lion and attach it directly to the neck of a lizard. You can take the lung of a poodle and put it in a fish. It's called electrical taping.