1 6x6 sandwich bag with about 3 cups of soil weighs about 13 Oz

Charcoal Green® Premium Biochar Potting Mix is made from crushed Charcoal Green® Pure Biochar and a blend of peat, composted cow manure, sand, coarse perlite, meat and bone meal, kelp, rock phosphate, lime, AND Mycorrhizae.

Trials have shown more rapid germination, and when the plants were removed from the trays the soil ball hung to the roots better than non-biochar mixes.

The PROOF: a 37% increase in yield of Beef eater Tomatoes, using the Charcoal Green® Premium Biochar Potting Mix.

ADDED BENEFITS:
Charcoal Green® Pure Biochar helps bind organic toxins (such as herbicides) from soil to provide a safer environment for new or existing root systems much like Amazonian terra preta soils. As well as:
******Improved Soil Drainage
******More Neutral pH
******Reduced Soil Compaction
******Increased Nutrient Cycling
******Greater Retention of Water In Dry Soils
******Improved Germination
******Improved Plant Resistance To Fungal Disease, Root Feeding Nematodes and Insect Infestations

Because of weight shipping is a bit higher than most other items I sell.

I use this also in my vivarium's.

+++++How many quarts of potting soil do I need? +++++

For a 4 Inch Pot, you'll need 3 Cups of potting soil; 6 Inch Pot, 1.5 Dry Quarts; 8 Inch Pot, 3 Dry Quarts; 10 Inch Pot, 6 Dry Quarts; 12 Inch Pot, 8 Dry Quarts; 14 Inch Pot, 12 Dry Quarts; 16 Inch Pot, 13 Dry Quarts; 20 Inch pot, 15 Dry quarts.