I distribute thousands of container-grown landscape trees a year to homeowners, schools, cities, and park managers. I have videos, e-mail directions, handouts, and workshops to teach proper planting. At tree distributions, I talk to most every person purchasing a tree to give them tree planting advice. The most common response I get is, “I’ve been planting trees for years, and think I have it down.”
Then, when I go to look at trees after they have been planted, they are invariable planted 4″ – 8″ too deep. I recently went to a homeowner’s association which had planted 50 trees; all of which had been planted in an auger hole – about 12″ too deep. They are in the process of correcting the error now; but what a lot of work that is, when they could have avoided it by planting properly the first time.
What methods do all of you use to help the public, as well as landscapers, understand the vital role planting depth plays in the health and lifespan of the tree?