It's said that many ages past, a cloud giant named Jack suffered from cold feet in his floating castle. Coming to earth with a single gold dragon egg to trade, he asked the wizard Cowan for help. Cowan's mother insisted that magic beans were the answer. They would grow to an enormous size, and the giant could wear the pods for warmth. Hmmm... sounds kind of silly, but these old stories change every time they're told.
The Stocking Beans's description mentions, "cloud giant named Jack". This is likely a reference to the fairy tale Jack and the Beanstalk, which features a giant who lives in the sky.
The name Stocking Beans is likely a reference to this story. The Stocking Beans's description states, "but these old stories change every time they're told." This is likely a reference to alluding someone mishearing the similar-sounding word "stalk" as "stock", and thus inventing a story about bean stockings instead of the classic beanstalk.