Bonsai Potting Soil | Bonsai Potting Gravel
While we do not claim to be bonsai tree specialist, we do have a universal product many bonsai clubs are looking for. That is a planting medium that will not break down, non-toxic and completely reusable time and time again. Lava rocks of many size are great for planting bonsai trees. You can plant the bonsai tree in one rock or in a soil mixture with smaller lava rocks or lava sand.
Bonsai trees grow in some of the rockiest terrain in the world. They seem to grow in bare rock at times or in the bare rocks that people place them in.

See more examples of our product in our Picture Gallery
For larger Lava rocks to plant a bonsai tree in the rock see Custom Lava Rocks
Potting Soil Amendments
Note: Not a Complete Potting Soil
This in not intended for a sole ingredient of potting soil , but as an additive to your current bonsai tree potting soil program, what ever that may be.
Black Bonsai Gravel
size 3/8 inch gravel only
This is the 3/8″ rocks, no cinder sand included except the sand created by movement and natural breakdown from rubbing together.
USPS 2-3 Day
Black Lava Rock 3/8″ gravel
$20.95/box
(Includes $11.45 Shipping Cost)
Bonsai Gravel 3/8 minus inch
This black with random pieces of red. This includes everything from 3/8 inch rocks on down to very fine black lava rock granules.
A very popular lava rock size for de-slicking grit, on driveways or porches where ice builds up. Some people like this size for making potting soil for indoor plants and Bonsai trees. Sold in USPS Medium Flat Rate box.
USPS 2-3 Day
3/8 inch with fines Lava Rock
$18.95/box
(Includes $11.45 Shipping Cost)

