Hi there! I have a question. I am new to the bonsai art for about 2 years.
I live in a flat and my bonsai trees pretty are much doing very well during spring, summer and fall. The problem I have is that I can't get Deciduous bonsai's to live during the winter. Some of them I know I watered too much, took out a chinese elm out of the pot in spring and saw that it was root rotted. (maybe it's a usual error for the beginners to water too much when the plant looks dry).
I must tell you that I live in Romania and here, the real bonsai soil (like akadama) is pretty damn hard to get. Just one online sells it and it pretty expensive.
The trees sit on a window enclosed terrace that never drops below 12-13 C* during the winter.
OK. so to summarize it, I think the question is how do I know how much to water deciduous during winter (because I think that is the cause that is killing them.
Thank you very much and I hope you much more experinced people can help me with some advices.