First appearance of Kryptonite in the series.
Maise is played by Sharon Thomas Cain who is Dean Cain's mother. This is one of her three appearances in the show. She also appears in Season's Greedings and Just Say Noah.
Though Superman in seen briefly in the pre credits scene, this is the only episode in which Clark does not transform into Superman for the entire remaining episode.
The title is a parody of the 1964 country song "Green Green Grass of Home" written by Claude "Curly" Putman Jr. and originally recorded by Porter Wagoner and many other stars subsequently.