I've planted two white sapote seedlings on my property on the Montenegrin coastline. We grow citrus here normally (though it is preferred for lemons to be planted near south facing walls; at least it was before the weather became warmer in the last decade). I plan to protect them during this first winter, just to be safe.
I was wondering, what is the best time to graft white sapote? Also, what would be the best time to take scion wood? Is it like with deciduous fruit trees, where scion wood is taken during winter and then stored in the fridge until spring, or does white sapote work differently, as an evergreen? If my trees survive the winter, I would like to graft good varieties onto them, but since I don't live near the property, I have to plan my time in advance.