Can your trees absorb rainwater?
Mulch Rings can help.
Mulch rings are the first defense against drought stress, allowing rainwater to seep into the root zone unimpeded. Watch the trunk of a large tree during a rain storm, there is a lot of water that runs down that trunk. Trust us, we have been caught in trees many times during sudden down pours.
Turf (Grass) Can Prevent Tree Roots from Receiving Ample Water
Mature trees can transpire over a hundred gallons of water each day during the height of the summer. Unfortunately, tree roots often compete with a sea of grass for the much-needed water, and grass roots are much more efficient at absorbing water than trees. Turf grass forms a strong mat of roots over the top of tree roots. If you doubt this, think about how sod can be cut and then rolled up for transport without the sod falling apart.
Mulch Rings Open Up Pathways for Rain to Reach Tree Roots
Mulch rings around trees and shrubs help to break up the grass mat and provide a place where rainwater can infiltrate past grass roots and nourish the roots of the woody plant species as well. The bigger the mulch bed or tree ring, the more water gets to its roots. When you ask, "How big of a ring should we install"? We'll say something like, "How big of a tree ring can you tolerate? The bigger the better."
Our mulch beds a.k.a tree rings consist of a bed edge around the perimeter (2-3" deep v cut into the lawn around the perimeter of the bed so the mulch stays put), a layer of cardboard, and a 3" layer of wood chips.