Lava Rock Granules Bonsai Tree Soil Additive - 5 lbs. (2.5 Qts.)

Buy It from Bonsai Boy of New York

'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 to 3/8 inch) is the best ''sand'' component around because it is ''sharp'' and has very irregular surfaces.'

Other products from Bonsai Boy of New York