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.
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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.
