Professional Bonsai Soil - 10 Lbs (5 Quarts)

Professional-Grade Bonsai Soil for Optimal Drainage, Aeration & Root Health

The single most important factor in maintaining a healthy bonsai tree is using the right soil. Our Professional Bonsai Soil is engineered to provide the ideal balance of drainage, aeration, and moisture retention, helping prevent both overwatering and underwatering.

This premium bonsai soil is produced by expanding and vitrifying select shale in a rotary kiln at temperatures exceeding 2,000°F. The result is a sterile, environmentally inert, ceramic-based granular soil that delivers consistent structure, excellent airflow, and long-term stability.

Unlike organic soils that break down and compact over time, this soil remains dimensionally stable, drastically reducing soil compaction and the risk of root rot. Its highly absorptive structure captures excess water during watering or rain, then slowly releases moisture as the soil dries, acting like a natural time-release system.

A proper bonsai soil profile consists of approximately:

• 25% water

• 25% air

• 50% solid particles

When soil compacts, air and water are forced out, suffocating roots and eliminating beneficial microbial activity. This professional soil maintains open pore space, allowing roots to breathe, absorb nutrients efficiently, and grow strong.

This is the exact soil we recommend upgrading to during your next repotting for improved vigor, healthier roots, and long-term bonsai success.

Key Benefits:

• Prevents overwatering and underwatering

• Excellent drainage with superior aeration

• Slows soil compaction and reduces root rot risk

• Neutral pH and non-toxic

• Sterile and environmentally inert

• Will not degrade over time

Specifications:

• Volume: 5 Quarts (10 lbs)

• Material: Expanded vitrified shale (ceramic granules)

• pH: Generally neutral

• Use: All bonsai trees