Is Vermiculite and Perlite the Same Thing

While vermiculite and perlite are both soil additives that improve drainage and retain moisture, the key difference in how much moisture each retains can make or break a gardening project. … Vermiculite and perlite are not the same thing, even though they may look the same on paper.

Can vermiculite be used in place of perlite?

Perlite and vermiculite are both used to improve moisture retention and aeration in soil. They are used in a similar manner, but they are not interchangeable.

What is a substitute for vermiculite?

Sawdust from untreated wood works well as a vermiculite substitute. It loosens the soil and also holds moisture well. Use sawdust that has been out in the weather for at least two to three months or else you will have to add nitrogen (such a urea) at the same time you add the sawdust.