#89 Stone vs Brown Shredded Mulch: Size, Cost, and Which to Use

#89 Stone

In the ASTM C33 sieve table, #8 stone passes a 1/2-inch screen and stays on a #8 sieve (about 3/32 inch), and #9 is a step finer. #89 is a blend of the two: most of it passes a 3/8-inch screen and stays on a #16 sieve. In practice you get a clean, small, sharp stone that looks like crushed pea gravel. Some quarries sell the same product as #8, #9, or "3/8 clean."

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.

#89 Stone

• ✓ Walkways
• ✓ Patios
• ✓ Pipe bedding
• ✓ Asphalt mix
• ✓ Dog runs
• ✓ Driveway top dressing

Brown Shredded Mulch

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

#89 Stone

• + Packs firmer than pea gravel at the same size
• + Stays put inside edging
• + Wheelbarrow and stroller friendly
• + Clean, so it drains
• + Cheap at $22 to $40 per ton

• − Plain gray look
• − Sharp edges, not for bare feet
• − Too small for a driveway surface
• − Less void space than #57 for drainage

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

#89 Stone

#89 stone is crushed stone screened to about 3/8 inch and smaller, with most pieces between 1/8 and 3/8 inch and no dust. It is angular, a blend of the #8 and #9 sieve sizes. Color follows the quarry: gray or white limestone, gray to pink granite, or dark basalt.

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.