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," ...

Every gardener wants nutrient-rich soil. But just because your yard doesn’t have enough nutrients naturally doesn’t mean you can’t add more with the help of vermiculite or perlite, common soil ...

Add Yahoo as a preferred source to see more of our stories on Google. suvian / Getty Images Every gardener wants nutrient-rich soil. But just because your yard doesn’t have enough nutrients naturally ...