MulchWorx Black Quart Concentrate
Top PickWhat We Like
- Restores faded mulch color effectively over large areas.
- Mixes easily with water and applies with a standard garden sprayer.
- Costs less than replacing mulch while matching its look.
Worth Noting
- Spray can splatter onto nearby concrete or walkways
- Dye will stain skin and fabric on contact; gloves and old clothes are recommended.
- Coverage Area
- 2,800 sq ft
Read the full review
MulchWorx turns sun-bleached black mulch back to a deep, uniform color in a single application. The liquid concentrate mixes with water and sprays on through any standard pump sprayer, covering up to 2,800 square feet per quart. The color bonds to wood fibers without creating a plasticky film, so the bed still looks natural.
This dye is best for homeowners managing large mulched beds who want to avoid the cost and physical strain of hauling new bags of mulch. The tradeoff is that the spray can splatter onto nearby concrete, pavers, or siding, and it will stain skin and clothing on contact. These are category-wide realities, not design flaws — preparation (masking or wetting hardscapes, wearing gloves) keeps the job clean.
Lay down cardboard or plastic sheeting adjacent to beds to catch overspray and protect hardscapes.
Bottom line: For homeowners with large mulched beds, this dye delivers consistent color at a low effort-to-cost ratio.