The eHow site has a little tutorial on hot composting the plant. Follow the link for the full instructions:Jicama is a tuberous plant that grows in the warm-weather climates of Mexico. The plant is also known as the Mexican potato or the yam bean. It produces pod-covered vines that can climb up trellises or will sprawl across the ground. Because the leaves and seed pods are toxic, care must be taken to compost them. You should follow a hot-compost process in order to destroy the seeds and toxins as the vegetation decomposes.