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

I add this to my well-draining soil mix for my Monstera Albos, Variegatas and ThaiCons. These and many other house plants are at risk of root rot if the soil does not drain well or dry out between watering. It creates soiless pockets in the potting soil to allow aeration. While it works similarly to perlite, it will not start to degrade like perlite. Plants love it (so do I)!

Perfect for my cactus. Great price and they are loving it! Perfect amount of drainage!!

Nice size works for what I needed.

I use pumice on my sidewalks and driveways when winter comes. Scattering house temperature pumice on icy sidewalks causes the ice to melt and the pumice soaks up the water and freezes to the ice. It becomes a layer of sandpaper all winter long. It means no salt will get into my grass or flowers and the pumice residue, when incorporated into the soil, helps my plants out. If I have to blow snow, the pumice will not chip or crack glass

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

Excellent product. With fast delivery.

Seems to be a good product good size! Update I'm getting ready to order another bag of this I've seen others that are cheaper but this actually bought back two of my plants so I'm going to stick with it even though it's a little on the pricey side my plants are worth it!

I use it for succulents and cacti. The porous structure improves soil drainage, aeration and aids in moisture retention. The air pockets eliminate or reduce soil compaction. It is fast draining so it helps stabilize new plants. It can just be sprinkled on existing plants to help moisture retention.