QuestionWe recently moved about a dozen Colorado blue spruce trees on our lawn. We planted them at the same depth that they were in there previous spot. Now with the extra dirt my husband has made a cone shaped mound around the trees that is a foot high. Will this bother the tree as it seems we planted it a foot deeper than previously now that we have added this dirt???
AnswerTree should be planted at the same depth as they were when you dug them up. The extra soil will smother the roots and either kill the trees or cause dieback of the foliage. I would remove the soil down to the ground level and then mulch around the trees with not more than 3 inches deep of organic mulch not piled up on the trunk. This will help hold moisture around the roots.