Apple trees in heavy soils
So I went a little overzealous in planning my fruit tree endeavors.
My soil is pretty heavy, tends to stay wet even in our dry climate. Im in AZ but up in the mountains in Flagstaff @ 7,000'. Our summers are mid 80's -low90's and winters get around -10 degs or slightly lower but for short periods.
Usually by late april/beginning may we've seen our last frost and our first snow usually comes around Late October/halloween.
A drainage test showed approx. 2" per hour drainage, with total drainage of the hole in 7-8 hours.
I currently have several apple trees, of which I need to pick TWO to plant. I have a standard honey crisp, a standard Zestar, a honey crisp on M7 and a Scarlet red on M7.
I would prefer the smaller trees, and ordered on M7 rootstock because the description said it did well in heavy soils. Of course now I read several other descriptions of M7 that say the exact OPPOSITE that they do not do well in heavy soils.
I could squeeze the standards if I had to, but would much prefer the semi-dwarfs.
Which do you guys think I would be better off with?? I appreciate any suggestions provided.