Viragrow makes the soil mixes and one of the ingredients it uses is perlite. Perlite is made from volcanic rock that is mined, milled and then heated to very high temperatures where it "pops" like popcorn. This expanded mineral is light in weight and has some interesting properties for soil mixes. One of these properties is it's very light weight and substitution for sand and a soil mix.
|
Perlite can be screened to accommodate several different grades or sizes. On the left is size #2 called horticultural grade and used in soil mixes. Other grades include #3 on the bottom right and #4 on the top right. |
Perlite can be purchased in 1 1/2 and 3 cubic foot bags as well as in cubic yard totes.
No comments:
Post a Comment