The Magician can make anything grow.
Aunt Monica gave us a tea tree. It was, as she put it, "sulking" in an east-facing window, as her house is sadly lacking in the south-facing window department. The Magician found a spot for it in the kitchen and now it is producing:
He plucks the leaves, dries them, and makes tea. One plant isn't enough to supply all his tea-drinking needs. (He's into TAi Chi right now. That seems to require lots of tea.) But it helps!