Nath Biogene [I] Limited supplies Light Green Colored Sponge Gourd Seeds. It is cylindrical shaped. The friut length is 20 - 25 cms and it weighs 100 - 150 grams. The maturity period of Light Green Colored Sponge Gourd is 120 - 130 days. The fruits are very tender, and the first harvest is done in 50-55 days after sowing.