Evelyn writes: What is the difference between perlite and vermiculite? I was told I could use either one of these products when mixing my own potting soil. Perlite (also known as horticultural perlite ...

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 ...

Decades ago, horticulturists studied ways to provide potted plants with a medium that offered support and nutrition as well as drainage and aeration, Don Kinzler writes.

Evelyn writes: What is the difference between perlite and vermiculite? I was told I could use either one of these products when mixing my own potting soil. Perlite (also known as horticultural perlite ...