Ive never used GA3 for these seeds and they all sprouted that ive had. soak in water a couple days or until they sink, give them from a month to 8 months and even longer to germinate. Once it sprouts give it a good amount of sun and the seed will eventually after a while fall off, if you keep in shade the seed doesn't fall off. Their really hardy from seed being exposed to a good amount of sun without burning. give good soil that holds moderate water.