50-55 days maturity from Transplanting. Momordica charantia ’Tai Guo’. Tai Guo Bitter Gourd Seeds. Non-GMO, warm-season, annual, hybrid. The Tai Guo gourd is a classic bitter gourd popular in Chinese cooking. It is vigorous, prolific, and delicious. This open-pollinated plant creates large, cylindrical, and shiny green fruits that grow up to 3 inches wide and 11 inches long. The typical fruit weighs a little more than a pound. Approx 195 seeds / oz.