Mulching is one of the simplest and most cost-effective landscape maintenance practices, yet it’s often done incorrectly or skipped entirely. A proper mulch application delivers benefits that go far beyond aesthetics.
Weed suppression is the most immediate benefit. A 2 to 3-inch layer of quality mulch blocks sunlight from reaching weed seeds in the soil, dramatically reducing germination. This means less weeding, fewer herbicide applications, and cleaner-looking beds throughout the season.
Moisture retention is equally important. Mulch acts as an insulating blanket over the soil, slowing evaporation and keeping roots consistently moist. During hot summer months, mulched beds can retain up to 70 percent more moisture than bare soil, reducing the need for supplemental watering.
Temperature regulation protects plant roots from extreme heat and cold. In summer, mulch keeps soil temperatures significantly cooler than exposed ground. In winter, it insulates roots against freeze-thaw cycles that can heave plants out of the ground and damage root systems.
The type of mulch matters. Hardwood mulch breaks down slowly and enriches the soil as it decomposes. Cedar mulch offers natural insect-repelling properties. Pine straw works well for acid-loving plants like azaleas and rhododendrons. Dyed mulches hold their color longer but don’t improve soil quality as effectively.
The most common mulching mistake is applying too much. More than 3 inches suffocates roots and creates conditions for disease. Mulch should never be piled against tree trunks or plant stems — the ‘mulch volcano’ look is harmful. LC & Son applies mulch at the correct depth with proper clearance around all plantings.
