1 Gallon 1/4 inch Bonsai Block (4 Dry Quarts)


Bonsai Block

Size: ¼ Inch

Condition: Sifted, Washed, Dried and Bagged.


Bonsai Block is a lightweight high fired soil amendment with a variety of earth-tones including peach, ash, black, tan and dark grey. It can be used as a substitute for lava, pumice and hard Akadama.

Perfect for amending soil for all plant types including cactus, succulent, bonsai , orchids and other plants that require a fast draining soil.

It arrives prescreened, sifted and neatly packaged in several bag sizes.

Consistent ¼ inch particle size. This increases drainage and air exchange within the potted plant.

Cosmetics. Bonsai Block is a great looking aggregate. It has a natural pebble look with multiple earth tones. Works great as a top dressing.

Fired at extremely high temperatures. This helps prevent breakdown and ensures a long service life.

Bonsai Block is a superior product and is priced lower than lava and about the same as Turface. It has many of the same properties of Maroon Lava.

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GTIN 00857206008374 SKU: 857206008374 Category:

Additional information

Weight 6 lbs
Dimensions 10 × 8 × 5 in

uniform mix of earth tones

Raw Material

Calcined Clay

Country of Origin(COO)

United States

Average Particle Size

1/4 Inch

Minimum Particle Size

1/8th Inch

Maximum Particle Size

3/8ths Inch


1, Dry

Cubic Inches


Cubic Feet



One Gallon Bag



Plant Type

Succulent, cactus, bonsai, orchid and other plants that prefer a fast draining soil amendment.


No dyes or chemicals.

Other Applications

Top dressing. An excellent replacement for Akadama.

Bulk Density

.403 ounces per cubic inch