Mulch with mold
Understanding Sour Mulch
Wood mulch storage techniques significantly affect product quality. A rare problem known as sour mulch may occur when using previously stockpiled wood by-products for mulching.
Landscape contractors sometimes produce their own wood mulches or obtain materials from sources like sawmills and pulping operations. While wood by-products are often used for fuel, they also serve landscape purposes such as mulching.
Impacts on Landscape Plants
Sour mulch can cause rapid plant damage. In one instance, plants began to wilt within a half-hour of application, and foliage turned white or light tan by the next day.
Affected plants included tulips, Phlox, Astilbe, and violets, with adjacent turf also showing damage as if bleach had been applied.
Benefits of Organic Mulches
Organic mulches offer numerous advantages for landscapes. They help stabilize soil and moderate soil temperature.
Additionally, organic mulches retard weed development, reduce evaporation of soil moisture, and enhance the aesthetic qualities of outdoor spaces. To determine the right amount for your project, use our mulch calculator at /.
Key takeaways
- Sour mulch is a rare but significant problem stemming from stockpiled wood by-products.
- It can cause rapid wilting and discoloration of plants and turf.
- Proper wood mulch storage techniques are crucial for product quality.
- Organic mulches provide benefits like soil stabilization, weed control, and moisture retention when used correctly.
Related tools
Estimate materials with our mulch calculator on MulchCalcs.