This evergreen subshrub is native to Paraguay and Brazil. Stevia can be grown in the garden or in pots. They tend to get a bit leggy, so cutting them back at harvest would help to encourage lower branch growth. The plant prefers full sun to part shade, humidity, and plenty of water. This heat-dependent germinator does best if sown just under the surface, tamped well, kept evenly moist and placed in direct sun, under lights, or in a greenhouse with temperatures from 80-85 degrees. It is possible to direct-seed stevia in the southern United States, or in the summer up north as long as the soil has really warmed up.