Black Shredded Mulch vs Lava Rock
Side-by-side comparison of Black Shredded Mulch and Lava Rock to help you choose the right gravel for your project.
Overview
Shredded hardwood mulch dyed black for a bold, modern landscape look. Rich black color makes green plants and colorful flowers stand out. Holds its color longer than brown mulch and provides the same moisture retention, weed suppression, and soil temperature regulation benefits.
Lava rock is a lightweight, porous volcanic stone commonly used in landscaping. Its rough texture helps retain moisture while allowing airflow to plant roots.
Common Uses
Black Shredded Mulch
- ✓ Landscape beds
- ✓ Tree rings
- ✓ Garden borders
- ✓ Foundation plantings
- ✓ Commercial landscaping
- ✓ Contrast beds
Lava Rock
- ✓ Landscaping
- ✓ Garden beds
- ✓ Decorative ground cover
Pros & Cons
Black Shredded Mulch
- + Bold black color creates striking contrast with plants
- + Holds color longer than natural brown mulch
- + Retains soil moisture reducing watering
- + Suppresses weed growth naturally
- + Insulates soil temperature
- − Dye can temporarily stain hands, concrete, and clothing
- − Needs replenishing every 1-2 years as it decomposes
- − Can attract termites if placed against structures
- − Fades to dark gray over time
- − Slightly more expensive than undyed mulch
Lava Rock
- + Very lightweight
- + Excellent moisture retention
- + Decorative appearance
- − Breaks down over time
- − Sharp edges
- − Can scatter easily
Cost Comparison
| Measure | Black Shredded Mulch | Lava Rock |
|---|---|---|
| Per ton | $25 – $45 | $90 – $150 |
| Per cubic yard | $30 – $50 | $110 – $180 |
Sizes & Colors
Black Shredded Mulch
Shredded strips of bark and wood, typically 1-4 inches long, dyed with carbon-based black colorant. The dye is non-toxic and safe for plants and pets. Double-shredded black mulch mats together better and resists displacement.
Lava Rock
Typically 3/4"–1.5" sizes. Red or black.
Published February 11, 2026
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