From Muppet Wiki

The Gorgs' Garden is located behind the decaying castle that is the home of the three Gorgs. This is where Junior Gorg grows his radishes and other giant vegetables. Fraggles must sneak into the Garden in order to obtain food; this is Mokey's job. Doozers mine Junior's radishes from underneath the Garden and turn them into Doozer Sticks.

From the Fraggles' perspective, the Gorgs' Garden was discovered by young Traveling Matt during a mushroom blight, although the Doozers had already been mining radishes for years.

Notable features of the Gorgs' Garden include the following:

• Geraldine, Junior's largest radish and best friend
• A Nirvana Tree
• Fraggle Rock, called "Kissing Rock" by the Gorgs
• A well which leads down to the Fraggle Pond
• The Gorgs' Trash Heap, also the Fraggles' oracle