Glee potting mix comes packaged as a highly-compressed material, which is why it’s in a small and lightweight bag. It expands to 2.5x its size, though, so the 0.4 cubic foot bag will actually yield 1.1 cubic feet of potting mix – matching other similar mixes in the market. One bag of Glee potting mix is enough to fill 25 quarts!  We made a chart to help with this: