2 Gallons 1/4 inch Horticultural Charcoal (8 Dry Quarts)



1/4 Inch Hardwood Horticultural Charcoal is a soil ingredient with amazing CEC properties. 5-10 percent of most fast draining potting soils should can charcoal.

Horticultural charcoal is a trusted soil amendment for many bonsai and succulent growers. Charcoal has an amazing ability to absorb moisture / nutrients and release them slowly over time. It has a pH of 7.7 and can be used to reduce acidity in your potting mix. It’s a lightweight and chunky ingredient that which improves drainage and aeration. No more than 10 percent of your soil mix should contain charcoal. A little goes a long way.

Bonsai Jack bonsai charcoal is free of chemicals and additives that are often found in store bought cooking charcoal. Screened to 1/4 of an inch before shipping.

Did you know?
All of our soil products are state inspected and tested on a regular basis in order to comply with multi-state regulations.
This ensures you receive material free of dangerous pathogens that can damage or kill plants. This is also required to maintain six nursery stamps that allow us to ship to all 50 states.


Click the Additional Information tab for more details.


GTIN 00857206008527 SKU: 857206008527 Category:

Additional information

Weight 8 lbs
Dimensions 12 × 4 × 13 in


Country of Origin(COO)

United States

Average Particle Size

1/4 Inch

Minimum Particle Size

1/8th Inch

Maximum Particle Size

3/8ths Inch

Raw Material

Fired Oak and Hickory.


2, Dry

Cubic Inches


Cubic Feet



Two 1 Gallon Bags

Plant Type

Soil Conditioner


Dye-free. Chemical free

Bulk Density

.137 ounces per cubic inch