I have the small pieces of the Jade plant in water to root. However, what about a large branch that broke off from the main plant--does it root in water, or dirt or what? The diameter of this branch is about 3 inches. It snapped when I was trying to upright and prop it with a wooden dowel. The plant is probably 100 years old, and the branch that broke off is probably about 1/4 of the plant. Any suggestions, please.