18 Gallons Fine Pumice for Seed Starting, 1/8–1/64 Inch Propagation Grade Volcanic Pumice with Fines, Cutting and Potting Mix

18 Gallons Propagation Grade Pumice – Fine 1/8" to 1/64" with Fines

Give your seed-starting and propagation mixes a natural mineral ingredient with this fine-grade volcanic pumice. Mined in Oregon's Southern Cascade Mountains, this pumice is hand-screened to remove pieces larger than 1/8 inch and includes the natural fines.

WHAT'S INCLUDED

• 18 gallons of propagation-grade pumice

• Particle size: 1/8" to 1/64"

• Standard screening grade with fines included

• Clean pumice with no rocks, roots, or other debris

IDEAL FOR SEED STARTING AND CUTTINGS

This fine pumice is ideal for:

• Seed-starting mixes

• Cutting propagation

• Custom potting soil blends

Suggested use: Add 15%–30% pumice to a peat/perlite-based mix. Adjust the proportion to suit your mix and growing needs.

CHOOSE YOUR SCREENING GRADE

Looking for a different amount of fines?

• Standard screened: This listing includes fines.

• Double-screened: Removes over 50% of the fines.

• Triple-screened: Removes over 90% of the fines.

NATURAL OREGON VOLCANIC PUMICE

Our pumice is mined in the Southern Cascade Mountains of Oregon. Often called the “rock that floats,” pumice contains tiny gaps and air pockets. Each batch is hand-screened and packed by our nursery.

PACKAGING AND STORAGE

• Hand-packed in bags with reusable ties.

• Reseal the bag for convenient storage after opening.

• If pumice dries before use, lightly moisten it to help prevent dust from forming.

PLEASE NOTE: Dust from rock and potting soil products should not be inhaled and may irritate sensitive lungs. Moisten dry pumice before handling to help limit dust.

QUANTITY AND SHIPPING
This listing is for 18 gallons of pumice. All prices include shipping. This quantity ships via UPS.

ABOUT OUR NURSERY

We are a commercial wholesale and retail plant nursery with over 16 years of experience mixing specialty potting media. Explore our other listings for additional custom potting mixes and growing materials.

A natural mineral ingredient for growers preparing seed-starting blends, propagation media, and custom potting mixes.