Mulch Maintenance

Mulch, when applied correctly, is one of the best things you can do for your trees.   A nice even layer from the edge of the root flare out to the drip line is great.  Remember not to place mulch in contact with the root flare as this can cause health problems.  Mulch helps retain moisture, adds organic matter, and regulates soil temperatures.  Now for the maintenance.  As mulch ages, fungal organisms break it down into more basic forms.  As the fungus breaks down the mulch, a boundary layer forms between the top of the mulch and the soil beneath.  This layer is impenetrable to water.  It is very important to aerate the mulch periodically to avoid this situation.  Either break it up with a rake or garden fork, or call your Arborist for options available using the Air- Spade.  This decomposition eventually enriches the soil beneath, creating a better environment for root growth.  As with everything, too much can be detrimental. If you are unsure,  contact your Arborist who can advise you on the most beneficial placement and depth.