I have a rainbow valley paw paw and a mountain paw paw - both of which are fruiting very well on 2 yr old plants. The mountain paw paw starts to go yellow when ripe and falls off the tree. The rainbow valley paw paw hasnt as yet and the fruit are a lot bigger (250cm long at least) and still green. I had one fall off recently in wild weather, after a bit in my fruit bowl with bananas it felt like it was getting soft in the centre so cut it open only to find it wasnt ripe. (see pic)
Does anyone know how I can tell if the rainbow paw paw is ripe and if there is any way of ripening the fruit off the tree?