What is your elevation? Also, are you on a slope that affects your micro-climate? If so, facing, N, S, E or W?
Elevation 2,500 feet, little slope facing south. No extraordinary micro climate.
I hear this often that folks think my very different methods work in my garden because Ii MUST have a very special micro climate. And people with normal climate should be careful.
This is nonsense. My microclimate is very normal for central Europe. It is very similar to most areas in Northeast USA. My students all over the world are very successful as bonsai gardeners in all sorts of climate.