Ah, see, you're already selling plants. Pretty soon other people hear about them and your client list grows and people start hunting you down to buy your plants. Every year you discover a faster way to propagate, a more efficient use of space and time, and a few more plants that you can grow. Then your dozens become hundreds, your hundreds become thousands, and before you know it you are looking at spring growing plans in the tens of thousands and bringing in additional help. It could happen to you. Beware.