4 Quart bag of Red Lava Rock Soil Additive
Granular size is roughly 1/4"
This Red Lava Rock is a natural volcanic cinder. It is commonly used as a soil additive and top dressing with Bonsai, Hydroponics, Succulents and many other plants. The primary reason Red Lava Rock is extremely popular as a bonsai soil additive is due to the fact that it allows excellent drainage (aeration) eliminating the possibility of excess standing water which can cause root rot. The rock will absorb up to 40% of its weight in water. Our 1/4" granular sized lava is jagged and porous. As micro roots begin to form and grown, the jagged edges of the lava rock will split the roots. This results in rapidly multiplying micro roots which ultimately form into a much stronger, denser, maturer root system.
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2 Customer Reviews
- Great soil additive & top dressing
Overall Rating Quality ValueI have been using the lava rocks for two years for my bonsai, which are small to medium. The lava rocks are high quality and the price for a large bag was very reasonable. I add the rocks to my soil (50/50 ratio) when repotting and also use them as an attractive top dressing, which also keeps the soil from drying out. My bonsai are doing great under this regime. Highly recommended.
- Excellent size for small and medium sized bonsai. Fast delivery.
Overall Rating Quality ValueExcellent size for small and medium sized bonsai. Fast delivery.