I have many Foretunella Japonica over 20 years old,
careless in the past few years. The branch is no good,
but the root is splendid , so I decide cut the main branch
to be mini size bonsai.
Early January.( It’s would be better cut when the temperature
It’s would be better add cut paster twice.
After 80 days , new buds come out from cambium.
This is the strongest one. Most of them as up photo.
Conclusion: This treatment should be operate when the temperature
over 20 or 25 degree C or middle of spring. This winter is more hot,
I do it too early, so waiting too long. Really DANGEROUS,
although all of them have new bud, but I spent too much time to care.