Aaron Baugher said:

"Lorenzo L. Love" writes:

That's about right. A gallon pot normally holds about 3/4
gallon. Don't try to make sense of it.

It's probably a full gallon if you heap it up.

Or takes a full gallon of loose potting soil, tamped down into it...
--
Pat in Plymouth MI

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)