Those seeds are harvested closely near the sea at a steep hill. The conditions are much harder than usual: permanent strong winds, and dryer than normal, but not cold throughout the year. Look at the seed source to view more information and to order in advance. I'm not sure if those seeds are orthodox, they were very dry on the withered or deciduous tree. However, the region is dryer, but the tree requires perhaps a very humid climate. That's why it perhaps lost all its leaves in the only dry season of 3-4 months. The climate of Vung Tau is 1462 mm/year rainfall and the altitude is 50 m and the average temperature is 25 - 30 degrees C.