How much soil do I need to fill a pot - Knowledgebase Question

Fairfax, Vi
Question by karoni2
March 9, 2010
Hi. I am totally new to gardening. I want to do some container gardening. I plan to buy four 20

Answer from NGA
March 9, 2010


The most economical way is to purchase the largest bag of potting soil you can. The amount of potting soil will be listed on the bag. Usually it's one cubic foot or two cubic foot bag. 1 Cubic Foot = 25.7 Dry Quarts. You'll need to measure the depth of your containers as well as the width to figure out the volume of potting soil you need, but here are some general calculations for standard sized nursery pots:
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.

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