Can I Use Perlite Powder In A Seed-Starting Mix

Question

Hi, Can I use Perlite powder in a Seed-Starting Mix. I order coarse Perlite but got mostly powdered instead. Just checking if I need to filter / sift through the contents and only use the big particles or can I also use the fine powder? If not, do I just throw away the powder? Thanks

Answer 1

You will want to rinse your perlite, prior to using it. Rinse it in as small of a mesh as you would like, but most of the smaller dust will wash out. Not rinsing, and leaving that dust, will likely result in fluoride burns.

Here is an article that will help you to use perlite in your soil:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/perlite-potting-soil.htm