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.

Brown Shredded Mulch vs Pea Gravel

Side-by-side comparison of Brown Shredded Mulch and Pea Gravel to help you choose the right gravel for your project.

Overview

Brown Shredded Mulch

Shredded bark and wood from trees like oak, hickory, and maple. Retains moisture, suppresses weeds, and regulates soil temperature. Decomposes slowly over time, adding organic matter to the soil. Adds a natural, finished look to landscape beds.

Pea Gravel

Small, rounded stones about 3/8 inch in diameter. Smooth texture and available in natural earth tones. Pea gravel is one of the most popular decorative gravels for residential projects thanks to its comfortable feel underfoot and attractive appearance.

Common Uses

Brown Shredded Mulch

✓ Landscape beds
✓ Tree rings
✓ Garden borders
✓ Erosion control
✓ Playground surfaces
✓ Slope stabilization

Pea Gravel

✓ Patios
✓ Walkways
✓ Playgrounds
✓ Drainage
✓ Landscaping beds
✓ Garden paths

Pros & Cons

Brown Shredded Mulch

+ Retains soil moisture reducing watering
+ Suppresses weed growth naturally
+ Insulates soil temperature
+ Decomposes to enrich soil over time
+ Attractive natural brown color

− Needs replenishing every 1-2 years as it decomposes
− Can attract termites if placed against structures
− May temporarily rob nitrogen from soil as it breaks down
− Floats and washes away in heavy rain
− Can develop mold in overly wet conditions

Pea Gravel

+ Affordable and widely available
+ Smooth and comfortable underfoot
+ Excellent drainage
+ Attractive natural colors
+ Easy to spread and install

− Shifts and migrates easily
− Not ideal for driveways (poor compaction)
− Requires edging to stay contained
− Can be tracked indoors
− Difficult to shovel snow from

Cost Comparison

Measure	Brown Shredded Mulch	Pea Gravel
Per ton	$20 – $40	$25 – $50
Per cubic yard	$25 – $45	$30 – $60

Sizes & Colors

Brown Shredded Mulch

Shredded strips of bark and wood, typically 1-4 inches long. Natural brown color that fades to gray over time. Double-shredded mulch is finer and mats together better, resisting wind and rain displacement.

Pea Gravel

Pea gravel ranges from 1/4 to 3/8 inch in diameter. It comes in natural earth tones including tan, brown, white, gray, and rust. Some suppliers offer mixed-color blends. The stones are naturally rounded and smooth from water erosion.

Published February 11, 2026

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