Does Gravel Wash Away?

Which Gravel Washes Away? Gravel can wash away during heavy rains, but proper installation and material selection greatly reduce this risk. Smaller, lighter gravel (like pea gravel) is more prone to washing than larger, heavier stone (like river rock or #57 gravel). Angular crushed stone interlocks and resists movement better than rounded stones. How to Prevent Washout To prevent gravel from washing away: Ensure proper grading so water flows where you want it — not across your gravel surface Install edging along all borders For driveways, create a crown (slight hump in the center) so water drains to the sides Slopes and Drainage On slopes, use crushed stone rather than rounded gravel, and consider installing a geogrid (honeycomb-shaped stabilizer) underneath. French drains or swales can redirect water before it reaches your gravel areas. If erosion is recurring, the underlying issue is usually poor drainage design rather than the gravel itself. Addressing water flow patterns is more effective than simply adding more gravel.

Black Shredded Mulch vs Pea Gravel: Size, Cost, and Which to Use

Black Shredded Mulch runs about $25 per ton and Pea Gravel about $25 per ton. Compare size, drainage, compaction, and which one to use.

Overview

Black Shredded Mulch

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.

Pea Gravel

Pea gravel is small, naturally rounded stone screened to 1/4 to 3/8 inch and washed clean. It costs $25 to $50 per ton in 2026, weighs 1.3 to 1.45 tons per cubic yard, and is the most popular gravel for patios, walkways, play areas, and garden beds because it is smooth underfoot and comes in warm mixed colors. The rounded shape is also its main drawback: the pieces do not lock together, so pea gravel shifts, spreads, and needs edging.

Common Uses

Black Shredded Mulch

✓ Landscape beds
✓ Tree rings
✓ Garden borders
✓ Foundation plantings
✓ Commercial landscaping
✓ Contrast beds

Pea Gravel

✓ Patios
✓ Walkways
✓ Playgrounds
✓ Landscaping beds
✓ Dog runs
✓ Downspout drainage

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

Pea Gravel

+ Smooth and comfortable underfoot
+ Warm mixed natural colors
+ Cheap at $25 to $50 per ton and sold everywhere
+ Drains fast, never muddy
+ Easy to spread by hand

− Shifts and spreads, needs rigid edging
− Ruts under tires
− Hard to push a wheelbarrow or stroller through
− Migrates into lawns and gets thrown by mowers
− Does not pack, so it never firms up

Cost Comparison

Measure	Black Shredded Mulch	Pea Gravel
Per ton	$25 – $45	$25 – $50
Per cubic yard	$30 – $50	$30 – $60

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.

Pea Gravel

Pea gravel is naturally rounded stone screened to 1/4 to 3/8 inch, about the size of a garden pea. Because it comes from river and glacial deposits, a load is a mix of colors: tan, brown, cream, gray, white, and rust, with some regional loads running mostly one shade. It is washed, so there are no fines.

Published February 11, 2026

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