Pack size: 11" (L) x 12" (W) x 2" (H). Numbers are in inches. 5 lbs.
This black lava rock has assorted particle sizes up to ~5mm.
Black lava rock is an inorganic bonsai soil constituent. It is usually paired with other inorganic soil constituents, such as akadama, white pumice, and red lava rock, but is useful in any soil mix as a constituent for aeration, drainage, and prolonged moisture release.
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