Add to Cart Compare Quick view Vermiculite 3.5 Cubic Foot Bag MSRP: Now: $34.99 Was: Vermiculite is mica heated to 1,400 degrees, expanding it into particles capable of holding much air, water and nutrients. The mineral itself contains potassium, magnesium and calcium available in slow release. It has an absorbent capacity for fertilizer... MSRP: Now: $34.99 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $34.99 Was: Subtotal: Add to Cart