Tree dimensional. Doesn't Canada have a similar nursery standard to the states?? I know of the problem you speak and myself and other colleagues in the states have arrived at the conclusion that this is because of tree spade harvesting which piles up another few inches of soil around the trunk before B&B. This unfortunately stays so for 6 or so months. Sometimes the tree spade if not correctly aligned does some serious damage to some large roots. It is common but at least in the states you are allowed to refuse the stock. Knowing your nursery and their practices is extremely important, which just goes to show again how many pies we need to have our fingers in. Just don't get me started about landscaping standards
