Do you have 1? Just took one home from the nursery so any methods/ tips would be well received. I think it needs to be at least a 800mm to a 1 m tree to incorporate the 6cm flowers, so maybe a 200mm trunk with a 250-300 first branch. Roots look like a good nebari can be achieved.
So if you had/have 1, let us know what you thought/think, and I'll so you mine in 5 years
Regards
Max