The chief cash crop of Yomitan is the
chrysanthemum, which, unlike in mainland Japan, can be grown in Okinawa during the winter months with the aid of artificial light at night. Chrysanthemums are followed in value by
sugarcane and pigs, in that order. Sugarcane is particularly suited to cultivation in Okinawa, as it does not require significant infrastructure (such as irrigation), grows well in Okinawa's soil, and can be left unattended for 18 months until harvest. The harvesting, refining, and butchering of commercial agricultural products are coordinated by the
National Mutual Insurance Federation of Agricultural Cooperatives (JA), and the growers receive a share of the profits. Another important crop in Yomitan is the , if not for its value as a cash crop then as part of the local culture and tourist industry; the town promotes itself as the , and holds a contest each year.
Sweet potato cultivation first reached Japan via Okinawa from present-day
Taiwan, predating rice cultivation, and either Yomitan or neighboring
Kadena can lay claim as the first cultivators of sweet potato in Japan. == Culture ==