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Colorado Lava Rock Granules- Bonsai Tree Soil Additive - 20 lbs. (10 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 inch) is the best "sand" component around because it is "sharp" and has very irregular surfaces.
  • 20 lb. bag
  • 1/4" granules
  • Dust free.

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