Perlite Non Return Valve Crop Duration: Improved varieties 160

Crop Duration: Improved varieties 160 days

Seeds will germinate with in 5-8 days

lack of nutrient or frost

tissue culture and division of roots

Infection/pest free

Perlite Non Return Valve Crop Duration: Improved varieties 160Perlite is an excellent additive for potting mix & hydroponic media. It is another light weight substance, made by heating amorphous volcanic glass to a high temperature which pops up to a porous substance that is very good in aeration and improves drainage. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently. It is an industrial mineral and a commercial product useful for its light weight after processing.