To use the Hybrid Crop Generator, select the two crops you wish to mix together from the drop down menus to the left. The resulting plant will appear over here on the right side.
Crop seeds can be purchased from Besta, Mushhu, or Sepiria at the neighboring farm. When you first start out you will have 2 bags of Tomato seeds inside of your Tool Shed. The crops grow faster then the trees and only produce 1 fruit. After the plant is harvested you can cut it down and replant a new bag of seeds.
The friut from the crops wil sell for more than the seeds. The only real way to get more out of the seeds is if you sell both bags of seeds that are produced from the Seed Maker.