Small Black Lava Rock

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

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

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.

very high quality and clean stuff.

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.