Yacon is a perrenial plant grown in the mid-elevation Andes for its crisp, sweet-tasting tuberous root, delicious eaten fresh. The texture and flavor is a cross between a fresh apple, watermelon and celery. In Northern areas plant after the last frost and harvest after the first few frosts have caused the tops to die back. While usable-sized tubers develop fairly early, they taste much sweeter after some frost. Yacon has two types of tubers, the edible storage tubers and propagation tubers that should be stored until spring.