History Where 'Ulu originated. Cultural significance . Significant facts. One tree can produce over 300 lbs of food annually. One tree can last 6 generations or more. In Hawaii there was a 19 mile 'Ulu orchard plant by King Kamehameha to feed his people and his army. When Lahaina was capital of Hawaii Islands it was renowned for beautiful and fruitful 'Ulu groves.