a little bit of explanation:
I have seven cultivars of wax apple: small green (1-2 years seedling), small pink (air layered and fruiting), small red (air layered and fruiting), small white (air layered and fruiting), big rainbow a.k.a ชมพู่เพชรสายรุ้ง (air layered and fruiting), big red a.k.a Jambu air citra (air layered and fruiting), big white a.k.a Jambu madu deli (grafted and not fruiting).
As rootstock is a small red, I grafted on it 1 small white, 1 small pink, 1 big rainbow. I wanted to graft a small green on the rootstock, and wonder if the small green which as not fruit yet will put fruit quickly or will it take 5-6 years?