Bonsai Soil Mix – 2/3 Inorganic, 1/3 Organic

Give your bonsai trees a balanced growing medium with this carefully prepared Bonsai Soil Mix, combining natural Cascade Mountain volcanic pumice, colorful volcanic lava rock, and compost.

This blend contains approximately 68% inorganic materials and 32% organic compost, providing a combination of mineral components and organic material for bonsai and specialty planting projects.

Our mix is hand-packed by an experienced commercial wholesale and retail plant nursery with more than 35 years of experience preparing specialty potting mixes.

Soil Mix Composition

32% – Natural Cascade Mountain Volcanic Lava Rock

• Particle size: 1/4"–1/32"

• Natural volcanic lava

• Attractive combination of red, gray, black, and white particles

36% – Natural Cascade Mountain Volcanic Pumice

• Particle size: 1/4"–1/32"

• Natural volcanic pumice

32% – Unscreened Compost

• Organic component of the blend

The result is an all-natural, relatively lightweight bonsai soil mix.

Available Package Sizes

Choose the quantity that works best for your bonsai collection or planting project:

• 15 ounces

• 10 cups

• 5 quarts

• 3 gallons

• 6 gallons

• 12 gallons

• 18 gallons

• 24 gallons

Container Fill Guide

Use these approximate trade-gallon equivalents when planning your order:

These are the seller's stated approximate fill equivalents.

Shipping Information

Shipping methods vary by package size:

• USPS Ground Advantage: 15 ounces, 10 cups, 5 quarts, and 3 gallons.

• Priority Mail or UPS: Larger quantities.

Want to Try a Sample First?

Samples are available for the cost of shipping.

A sample provides enough material to inspect the appearance and composition of the mix, but it is not intended to complete a planting project.

If you decide to order 6 gallons or more, the sample freight cost will be reimbursed.

Hand-Packed for Convenient Storage

Our potting mix is hand-packed and bagged with a reusable tie, making it easy to close and store after using part of the package.

Storage tip: If the mix dries out before use, lightly moisten it to help prevent dust from forming.

Dust precaution: Dust from rock and potting soil products should not be inhaled. It may irritate people with sensitive lungs. Avoid creating airborne dust when handling the mix.

About Our Nursery

We are a commercial wholesale and retail plant nursery with over 35 years of experience mixing specialty potting soils.

Explore our other custom potting mixes to find the right blend for your bonsai and specialty plants.

Thank you for supporting our nursery!