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," ...

A Christmas cactus thrives when its soil mimics its natural rainforest home—moist, airy, and fast-draining to keep roots healthy. Experts say the best mix uses regular potting soil blended with ...

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 ...

When shopping at your local gardening center or plant nursery, you'll probably come upon hefty bags of potting soil and potting mix. They tend to look the same, and you might think you'll just pick up ...