O-15 is a brand new variety just released! It is so new that still has the experimental name as you see! But those who tried it, say that it may be the best mango they ever tasted! I was bred from Jakarta seedling. It is a medium-sized mango, ovately shaped and turning yellow at maturity. The flesh is fiberless, yellow, and firm. The flavor is excellent, highly resinous, reminiscent of Jakarta but probably sweeter, belonging in the Indian/West Indian flavor class. The original tree is productive, and the fruit tend to ripen in a very short span, only a couple weeks! See more info about Mango varieties.