When I planted my apple trees, I made sure to plant the tree with the root level with the ground; however, two months later, the ground settled and the trees sank down. The graft is now about an inch or so above the ground level. The trees are doing great, with lots of new growth. My question is, should I dig up my fruit trees to make sure the graft unions are as high up as possible, or is this a lost cause and just monitor and cut out sucker shoots?
Don't dig the trees, the graft if at the correct level. There's good information and visuals in this article:http://www.ces.ncsu.edu/depts/hort/hil/ag28b.html