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There are few standards when it comes to container sizes and volumes. To determine the size of a pot measure across the top from one side to the other to determine how many inches or centimeters it is. However, because some pots are long and others are squat and because the sides of some pots are straight and others are tapered, the volume can vary. When it comes to filling a pot with soil estimating how much soil you need is an approximation. Often the volume of a container is measured in liquid quarts or liters, but, of course, when you purchase soil you are purchasing dry (potting soil is not liquid). A dry quart is equal to about 1⅛ liquid quarts. When deciding how much soil to purchase it’s best to factor soil compression that commonly results from moistening and pressing the soil into the pot. Soil compression can add another 15 to 20 percent dry soil to the container. Also take into consideration that when you transplant a plant from one container to another, you will be moving some soil around the roots of the plant. Take notes on the pots you have and the soil they require. In short order, you will have a realistic estimate of how much soil you will need to purchase when potting plants. Container garden on a balconySoil for Standard Clay Pots and Plastic Nursery Pots:This chart will help you translate container sizes for standard clay pots and black nursery pots and give you an approximation of how much soil each will require (again these are dry soil measures): 4 inch pot (10 cm) = 1 pint (0.5L) 5-6 inch pot (13-15 cm) = 1 quart (1L) = 0.03 cu. ft. 7-8 inch pot (18-20 cm) = 1 gallon (4L) = 0.15 cu. ft. 8.5 inch pot (22 cm) = 2 gallon (7.5L) = 0.3 cu. ft. 10 inch pot (25 cm) = 3 gallon (11L) = 0.46 cu. ft. 12 inch pot (30 cm) = 5 gallon (19L) = 0.77 cu. ft. 14 inch pot (36 cm) = 7 gallon (26L) = 1 cu. ft. 16 inch pot (41 cm) = 10 gallon (38L) = 1.5 cu. ft. 18 inch pot (46 cm) = 15 gallon (57L) = 2.3 cu. ft. 24 inch pot (61 cm) = 25 gallon (95L) = 3.8 cu. ft. 30 inch pot (76 cm) = 30 gallon (114L) = 4.6 cu. ft. See Garden Products Recommended by Harvest to Table Soil for Hanging Baskets10 inch (25 cm) = 5.5 dry quarts (6L) = 0.21 cu. ft. 12 inch (30 cm) = 7.9 dry quarts (8.4L) = 0.3 cu. ft. 14 inch (36 cm) = 13.9 dry quarts (15.3L) = 0.5 cu. ft. Soil for Plant Bowls8 inch (20 cm) = 1.9 dry quarts (2L) = 0.07 cu. ft. 10 inch (25 cm) = 3.7 dry quarts (4L) = 0.14 cu. ft. 12 inch (30 cm) = 5.5 dry quarts (6L) = 0.21 cu. ft. 14 inch (36 cm) = 8.4 dry quarts (9.2L) = 0.29 cu. ft. 16 inch (41 cm) = 12.0 dry quarts (13.2L) = 0.46 cu. ft. 18 inch (46 cm) = 18.8 dry quarts (20.7L) = 0.73 cu. ft. 21¾ inch (55 cm) = 31.2 dry quarts (34.3L) = 1.21 cu. ft. Soil for Oval Planters:12 inch (30 cm) = 3.8 dry quarts (4.1L) =0.14 cu. ft. 16 inch (41 cm) = 7.3 dry quarts (8L) = 0.28 cu. ft. 20 inch (51 cm) = 9.4 dry quarts (10.3L) = 0.36 cu. ft. Soil for Square Planters:12 inch (30 cm) = 11.2 dry quarts (12.3L) = 0.48 cu. ft. 15 inch (38 cm) = 23.0 dry quarts (25.3L) = 0.89 cu. ft. See Garden Products Recommended by Harvest to Table Soil for Window Boxes:24 inch (61 cm) = 11.7 dry quarts (12.8L) = 0.45 cu. ft. 30 inch (76 cm) = 15.6 dry quarts (17.1L) = 0.6 cu. ft. 36 inch (91 cm) = 19.7 dry quarts (21.6L) = 0.76 cu. ft. Soil for Strawberry Pots:5 gallon = 14 dry quarts (15.4L) = 0.54 cu. ft. Also of interest: Pots and Container Sizes for Growing Vegetables Soil and Planting Mediums for Containers Containers for Container Gardens Dwarf and Miniature Vegetables for Containers See Garden Products Recommended by Harvest to Table
Stephen Albert is a horticulturist, master gardener, and certified nurseryman who has taught at the University of California for more than 25 years. He holds graduate degrees from the University of California and the University of Iowa. His books include Vegetable Garden Grower’s Guide, Vegetable Garden Almanac & Planner, Tomato Grower’s Answer Book, and Kitchen Garden Grower’s Guide. His Vegetable Garden Grower’s Masterclass is available online. Harvesttotable.com has more than 10 million visitors each year. How To Grow Tomatoes How To Grow Peppers How To Grow Broccoli How To Grow Carrots How To Grow Beans How To Grow Corn How To Grow Peas How To Grow Lettuce How To Grow Cucumbers How To Grow Zucchini and Summer Squash How To Grow Onions How To Grow Potatoes How much does 5 gallons of soil weigh?Regarding this, how many pounds are in a 5 gallon bucket of dirt, generally used for fair estimate, on average, there are approx 55 pounds in a 5 gallon bucket of dirt.
How much does dry potting soil weigh?Dry, loose dirt weighs about 76 pounds per cubic foot, while moist, loose dirt weighs 78 pounds per cubic foot. A cubic foot of top soil weighs about 96 pounds, and a cubic foot of dry, screened top soil weighs 44 to 48 pounds.
How much potting soil does a 5 gallon bucket hold?The amount of soil to fill a 5-gallon pot or bucket is approximately 0.7 cubic feet. If your soil comes in bags of 2 cu. ft. then you should be able to fill about three 5-gallon pots.
How much soil do I need for a 1 gallon bag?Plastic Container Volume Chart. |