Small Black Lava Rock

Rated 4.9 out of 5
22 Ratings

BLV01

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Beautiful Small Black Lava Rock looks like small/medium perlite and is much better.

Please note that due to this products weight it is always shipped USPS.

This lava rock comes with black lava rock dust in it and will add to the minerals in your soil

Last longer than perlite, works like perlite, and provides minerals.

Will not shift and float to the top of your container like perlite.

Coming Soon!

Coming Soon!

Please note that due to this products weight it is always shipped USPS.

1/2 Cubic Foot Large Flat Rate Box
Dimensions: 12" x 12" x 5.5"
Weight: 35.0 lbs
1 Cubic Yard Tote
Dimensions: 36" x 36" x 36"
Weight: 1600 lbs

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average rating 4.9 out of 5
Based on 22 ratings
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94% of reviewers would recommend this product to a friend
18 Reviews
Rated 5 out of 5
Review posted

Must have in your mix

1st time user of this and I've noticed the difference big time. Definitely recommend this product

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Rated 5 out of 5
Review posted

Tomatoes!!!... with more to come

I built a simple.soil recipe using materials from Build-A-Soil with rice hulls, black lava rock and the craft blend along with some compost I had available. My tomato plants are huge. 3 of the 9 are at 6 feet. These three received larger pots and the blend mentioned above while smaller containers received a premade potting mix from a different organization. I also used this blend in several 5 gallon containers and those plants are at a hearty 3.5 feet. All of these plants have tons of flowers all over them!. I am only feeding these with compost tea every three weeks. Thank you Build-A-Soil! Customer for life for sure.

Mike H

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Rated 5 out of 5
Review posted

Lava Rock

Great product for aeration, I screen out my containers and amend the medium at the end.of the grow. The Lava gets reused.with no issues.

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Rated 5 out of 5
Review posted

high quality

very high quality and clean stuff.

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Rated 4 out of 5
Review posted

Best mixed with other aeration amendments

Overall this is a great product, with all the benefits described, although I take issue with the idea of using this as one's only aeration amendment. The particle size was quite a bit smaller than I expected, which is perhaps just a mistake on my part, and I should've bought the larger size. This product is only slightly larger in size than the biochar, and seems to disappear when mixed into the soil. I added A LOT of rice hulls to my mix to get it to the right consistency. I probably will not buy this again, unless perhaps to use as a top layer of "mulch" on smaller containers to prevent fungus gnats and uneven drying.

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