I keep my seeds stock current. There is no guarantee on the seed germination because seed germination doesn't depend on seeds quality only. they require user experience, perfect temperature, proper watering. so i am selling my seeds as is with no guarantee. 
15 ThaiJicama Seeds | Mexican Yam Bean Root | Man Kaeo | Hột củ sắn

150 Days to maturity. Pachyrhizus erosus . Thai Jicama Seeds. Annual, Open Pollinated. This Asian variety of jicama yields larger tubers than Mexican Jicama. It has sweet and crisp light-colored flesh, and tan to light brown skin. This larger variety can reach up to 5 or 6 inches in width, and 5 pounds in weight in warmer climates, smaller in cooler areas. The roots develop fully after flowering. Roots are edible. 


PLEASE NOTE: Leaves and seed pods are poisonous! Other names for this variety include True Jicama and Yam Bean, and in the original Thai, Man Kaeo.


How to Grow Thai Jicama


Sandy loamy well-drained soil. This is a long growing plant. Start in containers indoors 8-10 weeks before last frost in temparate climates. Plant in the garden after the last possible frost. Keep soil moist. Fertilize as needed. Optimum growing temperatures are in the 70s or warmer, this plant is not frost tolerant. Trim the flowers off as they appear, this will keep the vines shorter, and the roots bigger.