Never heard of it so I Googled it. I don't think it is what I would want for large expanses of ground cover. It looks too artificial even if you use the various sizes available.

Crushed lava comes in a variety of colors to choose from among as well as whatever mix of sizes you want. You can place lava boulders and then blend in bowling ball size lava rocks on down to gravel for an attractive look. I'm talking thousands of sq ft of coverage not just a small planter or two.

I want to put in some blue carpet juniper as well and it looks good creeping over crushed lava.

Pat