Among the life form plants ,the hemicryptophyte amounts to 43% of the total, the geophyte and the therophyte each makes up 15%, and the hemicrypto-geophyte takes up 12%.
So in theory, if we farmed these long-lived perennial plants instead of the annuals, we wouldn't have to re-seed our fields every single year, and our lives would be easier.
The gardening expert for the Associated Press, Jessica Damiano, says most people in the United States have to treat tropical plants like annuals because they do not survive cold winters.