Mulch is any material that is placed over the soil in your garden.  Its purpose is to help retain moisture, deter weeds and stop the soil from eroding.  It is beneficial as it saves time in weeding and watering and many gardeners feel that a nice thick layer of mulch looks better than bare soil.  Mulch is available through many garden centers but consider making your own by shredding leaves, sticks, grass, bark, compost or other organic material.  Before mulching remove weeds and thoroughly soak the soil and remember it is meant to stay on top of the soil not be worked into the soil where it could hinder a plants growth.  The best benefits come from and nice course mulch applied 2-4” thick.