Black Lava Rock | 2 Quarts Bag | 1/4” Particle Size | Soil Aggregate for Bonsai, Cactus, Succulents, and More | Enables Optimal Drainage and Soil Aeration | The Bonsai Supply

I use this in my homemade pon mixture. It has worked very well so far, I’ve been using it for about 4 months now and plants are growing well.

These pine bark pieces are as described, small, but not too small, just right for adding to my potting soil I mix for plants that need only a slightly acid type of soil.This also adds to better drainage as well.

Great product, well sifted and packaged great.

Good grain size for cacti soil additive. Yellows if used as a top dressing, better for in situ

This stuff is incredible. I’m using it for mulch for my strawberry plants and it’s just very high-quality great product. I will be buying lots of this.

I initially purchased this rock years ago to us in a bonsai but couldn't decide which plant I wanted so it sat on my potting bench for a year or two. Just recently I needed to re-pot a Christmas Cactus so I used the lava rock as part of the filler soil and spread the leftover on top. It works well for drainage and looks good as well. This purchase is for re-potting my plants in the future.

I’ve gotten other pumice stone that wasn’t the size it was advertised to be and was extremely dusty. I figured give this a go and see what happened. There was low dust, the pebbles are the size as advertised. Excellent value for the money, seems to be retaining the right amount of moisture.

Great product