Six Tree Planting Steps
Utah State University Extension
Planting trees too deeply has become an epidemic leading to the decline and death of landscape trees. In the landscape, trunk-girdling roots account for more tree deaths than any other factor. Trunk-girdling roots develop when a tree is planted too deeply in the root ball and/or the root ball is planted too deeply in the planting hole. Trunk-girdling roots may lead to decline and death some 12 to 20 years after planting. Trunk-girdling roots may be below ground.
Kuhns, M.R.. 2009. Six tree planting steps. In: Varga Arboretum Plant List, Utah Botanical Center, USU. 1 pg.