Inorganic Bonsai Soil Mix, Large Particle Pumice Lava Rock and Turface, 1/4–1/2 Inch Mineral Growing Medium, Specialty Potting Mix

Give your bonsai and specialty plants a durable mineral growing medium with this large-particle inorganic soil mix. Made with natural Cascade Mountain volcanic pumice, volcanic lava rock, and high-fired calcined clay (Turface), this blend is designed for long-lasting bonsai soil and specialty growing applications.

The combination of three inorganic materials creates a distinctive, chunky mix with attractive natural colors and varied mineral textures.

Inorganic Soil Mix Ingredients

This blend contains approximately one-third of each ingredient:

1. Natural Volcanic Lava Rock – 33%

• Particle size: 1/2"–1/4"

• Natural Cascade Mountain volcanic lava

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

2. Natural Volcanic Pumice – 33%

• Particle size: 3/8"–1/4"

• Natural Cascade Mountain volcanic pumice

3. Large Particle Turface – 33%

• Particle size: 1/4"–1/2"

• High-fired calcined clay

• Durable inorganic mineral component

Great For

• Bonsai soil and growing projects

• Specialty plant potting mixes

• Inorganic growing media

• Custom mineral soil blends

• Hydroponic growing applications where a coarse inorganic medium is suitable

Use this mix as supplied or customize it with your preferred locally available compost or organic matter to create a blend suited to your plants and growing conditions.

Available Package Sizes

Choose from the following quantities:

• 15 ounces

• 10 cups

• 5 quarts

• 3 gallons

• 6 gallons

Approximate Container Fill Volumes

Our package sizes provide the following approximate trade-gallon equivalents:

These are approximate volume equivalents for planning your project.

Shipping Information

Shipping method depends on the package size:

• 15 ounces: First-Class shipping

• 10 cups: USPS Priority Mail

• 5 quarts: USPS Priority Mail

• 3 gallons: UPS

• 6 gallons: UPS

Hand Packed for Convenient Storage

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

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

Dust Safety: Dust from rock and potting soil products should not be inhaled. It may irritate the respiratory system, particularly in people with sensitive lungs. Avoid creating dust when handling the mix.

Sample Orders

Would you like to see the material before purchasing a larger quantity?

Samples are available for the cost of shipping. If you subsequently order 6 gallons or more, we will reimburse the sample freight cost. Just let us know when placing your order.

Please note that samples are intended to let you inspect the product and are not large enough for a complete planting project.

About Our Nursery

We are a commercial wholesale and retail plant nursery with more than 30 years of experience mixing specialty potting soils and growing media.

Explore our other specialty potting mix listings to find additional blends for bonsai and other plants.

Thank you for choosing our nursery for your growing projects!