Lava Rock (Scoria) - Small 14 lbs 1/8" + minus
Comes from natural volcanic rock, this crushed medium is very porous to improve drainage and aeration of the roots. The color is mostly blackish red with a few tan rocks. This small grain is about 3/8 inch. It's good to use for top soil dressing, bottom layer and mixed with akadama and organic bonsai soil mix. It can also be used for catcus plants.
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