Profusion Crab Apple Tree
I just purchased a Profusion Crab Apple Tree to put in the area where a 40 foot pine tree fell this past fall when a hurricane blew through here. I had the tree removed and supposedly the trunk had been grounded down in order to plant an ornamental tree in this area. Now, as I've been digging into this hole this past week, I find that the stump is still in the ground, about 1-2 feet down below the surface. So now, I'm looking at another area and would like to know just how deep I would have to go. My soil is clay but I've been told that crab apples do well in most soils. I plan to go wide, about 3-4 feet around but don't really have the option of going as deep as the area where the pine tree was located.
Also, would it be wise for me to add compost to the area around the roots of this tree? Any help or suggestions will be greatly appreciated. It's a pretty good size tree, so I'll most likely have a hard time planting it. I plan to have it delivered, placed near the hole so I can just roll the tree in.
Thanks - Linda