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," ...

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 ...

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 ...

Think of your indoor and outdoor plants a little bit like Goldilocks: They need a just-right potting mix or soil to help them really thrive. And although the words “potting mix” and “potting soil” are ...

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 ...

My gardening season begins on my garage floor. Here I mix potting soil that will nourish this season’s seedlings and replace worn-out soil around the roots of houseplants. The three basic ingredients ...