Those little squishy white balls in your potting soil aren’t styrofoam. They’re actually perlite, AKA volcanic popcorn. In the building industry, perlite is used in ceiling tiles and lightweight ...

Perlite is a volcanic glass that is often used in gardening due to its lightweight, porous nature that aids in healthy plant development. "It is made from a type of volcanic glass called obsidian," ...

Look up the word “vermiculite” in Henry Beard and Roy McKie’s hilarious “A Gardener’s Dictionary” and you’ll see it defined as an “obscure order of nuns devoted to gardening.” In fact (as opposed to ...

The word “vermiculite” is defined in Henry Beard and Roy McKie’s hilarious “A Gardener’s Dictionary” as an “obscure order of nuns devoted to gardening.” In fact, it is a silicate material similar to ...

If you're new to growing houseplants, you may have already realized that having the proper potting soil is important. And if you're already a houseplant aficionado, you know there are ready-made soil ...

Q: I would like to start some seeds in my greenhouse and am looking to purchase some potting soil to use for seed starting. I noticed that there are soils sold as seed starting mix but they are ...