Buy Gardening Soils, We would like to introduce you with Bonsai Boy's Colorado Lava Rock Granules Bonsai Tree Soil Additive - 2 lbs 1 Qt.

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.

Hot Gardening Soils, We suggest you with Bonsai Boy's Colorado Lava Rock Granules Bonsai Tree Soil Additive - 5 lbs 2 5 Qts.

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.