For fifty years or more (I'm withholding that info) I never really learned what exactly was meant by pot sizes, especially when expressed in gallons. Gallons are a liquid measure to me. Soil would be a volume measurement. The database has available spots for referencing a plant's suitability for being grown in a container. Sometimes there you'll see something like "Suitable in 3 gallon or larger". What, then, is the equivalent to that in a container's dimensions? I've been researching. It's somewhat lacking, but here's a simple conversion that approximates the size container by cross-referencing the diameter. I didn't know where to post in ATP, but since containers are used broadly across the plant spectrum this seemed the best Forum. I hope someone else may find it useful. The meat and potatoes information:
4" pot= pint (0.5 quart)
5-6" pot = quart (0.25 gallon)
7-8" pot= 1 gallon
8.5" pot = 2 gallon
10" pot = 3 gallon
12" pot = 5 gallon
14" pot= 7 gallon
16" pot= 10 gallon
18" pot = 15 gallon
24" pot = 25 gal
30" pot= 30 gal
This doesn't address the depth of a pot, but is still a good idea of the pot sizes. It's all about what I can lift and what I need a forklift to move:smily: ! I like thick clay pots, but age may dictate that I need to make peace with plastic and resin which weigh less (but are also easier for the ever present wind here to topple over).
