45-50 Days to maturity. Lagenaria siceraria. India Type Nam Tao Ngam Hybrid Seeds. Annual, Hybrid. India Type Nam Tao Ngam produces vigorously growing vines and 18-20" long bright green gourd fruits. You can expect high yields of bottle gourds from this hybrid. The India Type Nam Tao Ngam goes by many names including long melon, opo squash, and "calabashes", though they should not be confused with the calabash fruits of the tree (Crescentia cujete). This gourd is used as you would a zucchini. Its flesh is tender however, it becomes more bitter with age. About 140 seeds / oz.