Hot Pick
Colorado Lava Rock GranulesBonsai Tree Soil Additive - 2 lbs. (1 Qt.)
Categories: Garden
Store: Bonsai Boy of New York
$6.95
Only 5 left in stock – order soon!
Lava Rock is a naturally occurring volcanic cinder that has a porous structure which makes the material lightweight and highly moisture retentive. Incorporate into your bonsai soil mix to increase drainage (aeration). It will absorb up to 40% of its weight in water. Small lava rock (1/4 inch) is the best "sand" component around because it is "sharp" and has very irregular surfaces.
