I need some advice on the best type of flowering fruit tree to get for my collection. I have been looking at apple, plum, and cherry. I have tried apple and cherry but realized very quickly that one has to stay right on top of the fungus spray or the trees will just fade away. Especially hard on seedlings. I have looked at Yoshino, Kwanzan, and Mt Fuji cherries, and a twisted plum called Longyou Mie. I would like to get some advice on a tree or two that might work in my zone 6. I have both summer and winter protection. A regime and helpful spray for the fungus problem would also help if you could. My humidity is low here so don't understand all the fungus problems. All help and advice is appreciated.