No More Tree Volcanos

Did you know that "tree volcanos" are terrible for trees? If you have mulch touching the trunk of your trees or bushes I recommend getting out there and pulling it away from the tree as soon as you can to expose the root flare. The mulch against the tree actually causes the bark to rot which will weaken and can kill your tree. You may also see roots wrapping around your tree instead of away from the trunk and down into the soil where they should be to keep your tree healthy and strong.

The rule of thumb is to keep mulch minimally several inches away from the trunk of your tree, bush or plant. This will also enable rain to more readily drip down the plant and into the ground instead of being soaked up by the mulch.

Experts recommend:

• A layer of mulch 2-4 inches thick under your trees is recommended making sure that no mulch touches the trunk.

• For young or newly planted trees, spread mulch out to the dripline (the outermost part of the tree’s canopy where water drips onto the ground).

• For older, well-established trees try the “3-3-3 Rule.” Spread a 3-inch layer of mulch in a 3-foot donut around the tree making sure to leave at least 3-inches between the mulch and tree stem.

Why mulch under a tree? In addition to the usual reason we all use mulch:

• The mulch keeps lawnmowers and weed wackers from hurting the tree bark.

• Also, beneficial caterpillars and other insects fall from trees and the mulch layer (or pretty garden) protects your beneficial insects from the lawnmower.

So, please, if you have mulch touching your trees or plants pull it away. You can also use your hose to spray the base of the tree to help clean out whatever your hands can't get at. Then, spread out mulch according to the recommendations above.

Happy Gardening!