Plant Prunus serotina in the Central and Eastern U.

Apr 30, Expert Response. It certainly is acceptable to leave the needles where they are. They are just a natural form of mulch. As long as they are not bothering you or other plants, leave them where they are.

Barbara Harlan Replied April 30, May 10, A mountain of mulch, piled high against the tree trunk, does not kill a tree immediately but results in a slow death. Over-mulching is a waste of mulch and money.

It is a leading cause of death of cherry trees, ash, birch, linden, spruce, and many other landscape plants. Over-mulching can kill trees and shrubs by oxygen starvation. Sep 02, The mulch gets steeper and steeper the closer it gets to the tree, which shoots out of the middle like a lava eruption.

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In such an arrangement, the mulch maybe two inches high at the perimeter and six inches high up close to the trunk. You might also see a mulch volcano springing out of the grass in the middle of a lawn." of natural mulch such as wood chips, leaves or pine needles can benefit the tree.

Primarily by helping keep the roots moist and keeping lawn mowers away from the tree. Mulch comes in all kinds of shapes, sizes and colors.

If it is greater that 7.

But it's important to mulch properly. Don't pile mulch against the trunk. In fact, keep it at least 6" away from the trunk. Apr 14, Mulch is always a good option for landscaping under any tree, spruce or otherwise. Choose from the more attractive mulch varieties, such as wood chips, bark or other organic mulches, which decompose on their own without harming the environment.