Description This is Japanese Fuji Rock (Black Lava Rock), excellent drainage component for bonsai soil. Black lava improves soil structure by providing aeration and drainage while retaining moisture. The rock is durable, releases trace minerals, and supports microbial life, making it a valuable addition to soil mixes for bonsai. This is often used with Akadama and pumice to make a complete bonsai soil mix. Local Pickup – 18 Liter Bag Shipping Included – Large Flat Rate Box 3.5 Gallons Check out our article below about bonsai soil: Bonsai Soil: How to Create the Right Mix for Healthy Trees
