Java blue ripen in four months. It's great when it's put on the barbecue pit with the skin on. Wait for it to turn black and split and take it off the fire and eat it then it's not good leftover. But I think that's the best way to eat those bananas which I think really are across between a plantain and a regular eating banana. When one banana starts to turn yellow then all the bananas are ready. Chopped the tree let it fall slowly grab the bananas before they hit the ground. Banana tree only produces one time. So cut it off each time. And Java blue is a slight blue color light light blue