Pumice
Pumice has been used in the horticultural industry for generations. Its ability to provide aeration to heavy soils is its primary function. It is light weight and porous. Being porous allows the stone to hold water and slowly release it back into the soil as needed. We purchase this material directly from an Oregon mine.
–Benefits–
It’s a natural, unprocessed stone that comes straight from the earth. Nothing is added or striped away
It holds onto moisture
It releases moisture slowly, and at a steady rate
Provides aeration to the soil
Can provide small amounts of trace minerals to the soil blend
–Price–
$9.50 per 1.5 cubic foot bag
$40.00 per bulk yard
Also available in 2 yard Super Sacks for $130