My son is working for a Nursery and he says your suppose to plant the trees either flush or 2 to 3 inches above the ground . I thought I read where you suppose to plant the trees a little below the ground . That way they would utilize the water better . And besides if you planted trees for me above the ground and my yard was flat and manicured. I don't believe I would except it . I also read your suppose to put water in before adding the dirt, in doing so forces the air out and the tree would settle in better. What do you guys know about tree planting ? Please help .........Thanks.