1/4 to 1/8 Inch Screened Pumice, Bonsai Soil Amendment, Natural Volcanic Rock, Succulent and Cactus Soil Mix, Clean Horticultural Pumice

Create your own bonsai and specialty planting mixes with clean, screened natural volcanic pumice from the Southern Cascade Mountains of Oregon!

This hand-screened pumice is a useful ingredient for bonsai soil, succulent mixes, cactus growing media, and specialty nursery blends. It contains clean pumice without rocks, roots, or other debris.

🌋 Product Features

• Natural Volcanic Pumice: Mined in the Southern Cascade Mountains of Oregon.

• Hand-Screened: Rescreened to remove oversized particles.

• Clean Material: No rocks, roots, or other debris.

• Useful for Specialty Mixes: Suitable for bonsai soil, succulent mixes, cactus mixes, and other horticultural applications.

• Reusable Storage Bag: Hand-packed in a bag with a reusable tie for convenient storage.

📏 Understanding the Pumice Sizes

Pumice is naturally irregular in shape and size, so all particle measurements are approximate.

This product is screened from mine material supplied as 3/8-inch minus. It is rescreened to remove particles larger than 1/4 inch.

How the screening works:

• Material that passes through the 1/4-inch screen but does not pass through the 1/8-inch screen is classified as 1/4-inch pumice.

• Material that does not pass through the 1/4-inch screen is classified as 3/8–1/4-inch pumice.

The pumice is not perfectly uniform, and some particles may be slightly outside the stated approximate size range.

🌱 Uses

• Bonsai soil and growing mixes

• Succulent potting mixes

• Cactus soil blends

• Specialty nursery soil mixes

• Custom horticultural growing media

📦 Available Quantities and Coverage

Coverage refers to the approximate number of trade-gallon containers the pumice can fill.

🧪 Want to Check the Particle Size First?

Samples of both 1/4–1/8-inch and 3/8–1/4-inch pumice are available for the cost of shipping.

If you later order 6 gallons or more, the sample shipping cost will be reimbursed. Leave a message at checkout with your previous sample order information when placing your qualifying order.

Samples are a helpful way to inspect the actual particle size before purchasing a larger quantity.

🌋 Natural Material and Size Variation

Pumice is a natural volcanic material known as the “rock that floats” because of its many tiny air pockets.

Please keep in mind:

• Particle sizes are approximate because pumice is naturally irregular.

• Material from different areas of the mine may vary slightly.

• Pumice can gradually break down.

• Some fine particles may develop during shipping.

📦 Packing and Shipping

Pumice is hand-packed in bags with reusable ties for convenient storage after opening.

Shipping methods:

• Samples: USPS Ground Advantage

• 15 oz: USPS Ground Advantage

• 10 cups, 5 quarts, and 3 gallons: USPS

• 6, 12, 18, and 24 gallons: UPS

Free shipping to most locations. Orders over 6 gallons cannot ship to Alaska, Hawaii, APO addresses, U.S. territories, or locations considered remote without a freight surcharge.

Scenic Hill Farm is a licensed Oregon nursery and ships to all states.

⚠️ Handling and Dust Precautions

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

Avoid inhaling dust from pumice, rock, or potting soil products. Dust may irritate the lungs, especially for people with sensitive respiratory systems.

Choose your preferred quantity and use this natural screened pumice in your next bonsai, succulent, or specialty soil project!