04/27/2026
Want your trees to thrive? Mulch helps retain moisture in the soil and protect tree trunks from lawn mower damage, weeds, and competition from grass.
When mulching, be sure to follow the Rule of 3:
📏3 feet in diameter
📏3 inches deep
📏3 inches away from the trunk
Never make a mulch volcano! 🚫🌋 Piling mulch too deep and against the trunk can lead to rot, insects, and diseases. You should always be able to see the root flare where the trunk starts to widen before reaching the first woody root.
For more tree care tips, visit https://www.dnr.state.mn.us/treecare/caring-pruning.html