Exposed roots

The following is by Linn County Master Gardener Claire Smith:

 

Ouch!  Ouch, again!   Oh! The sound is definitely not music to my ears.  How much damage did I do to the blades that I didn’t want to replace until season’s end?  Have you ever inadvertently mowed over a tree’s exposed roots?  Those are the surface roots growing just a little above the soil.  They are important to the support and health of a tree.  Continual wounds from a lawn mower blade or weed whip create entryways for insects and diseases. 

Here are some hints for easily eliminating a stressful situation:

§  Do not try to correct the situation with an ax!

§  Use mulch (one of my favorite items).  A two or three inch layer is attractive and provides a good environment for the roots.  Prevent smothering the tree trunk by keeping the mulch two or three inches away from the trunk.

§  Plant a shade loving perennial ground cover around the base of the tree.  The plants will insulate the roots but won’t out-compete the tree for water and nutrients.   Try some of the hundreds of varieties of Hosta that are just waiting to be chosen.

§  If you like some grass under the tree(s), strategically space plantings. 

§  Plan for a bit of elbow grease as weed control is critical. 

§  As a last resort, you could eliminate all of the grass by covering it with layers of newspaper.           

§  Do not build a raised bed around the tree.  Burying the tree roots will kill many species of trees.  And, the roots that don’t die will eventually reach the surface again.

§  Do not rototill or add soil to the planting area.

§  Amending the soil with organic materials such as peat or compost is very acceptable. 

There is still time to plant this summer. Change the landscape under the tree and save that mower blade and weed whip string for necessary areas. 

 

 

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