- Perlite is great for seed starting mixes and blending your own custom potting soil mix
- Helps lighten and loosen heavy, compacted soils
- White granular pieces that contain about 6 percent water
- Perlite has a neutral pH level
- Holds nutrients and three to four times its weight in water
- Clean, sterile, odorless, and non-toxic
- Your plants will be more susceptible to dehydration if you grow in 100% perlite, so opt for a soil blended with (5-40%) perlite instead.