I incorrectly labeled the image as 35 lbs. It's 20.
I have been trying to purchase vermiculite locally, but it is out of stock. The only vermiculite I could find needed to be shipped. After checking prices, I settled on this 20-pound bag, which is 120 quarts, from Amazon. At the time I ordered it, it was $35.99 and, by far, was the best price per pound I could find. This bag will last me many years.
Vermiculite helps lighten the soil so air can get to the roots. It also is absorbent so it will retain moisture and nutrients. I also like to use it as a thin cover layer when I am starting tiny seeds to make sure they do not dry out before they get a chance to sprout. You can learn more about the uses of vermiculite here.
