- "Every town has one, the spooky house that all the kids avoid. Ours was Thornhill, the Blossom family’s mansion, with its very own graveyard."
- —Jughead about the Blossom family home[src]
The Blossom House, also known as Thornhill, was the family residence of Rose, Penelope, and Cheryl Blossom, as well as Clifford and Jason Blossom before their deaths. It was a large old mansion set on an expansive estate that included a cemetery where many members of the family had been buried.
Following the reveal that Jason Blossom had been murdered by his own father, Clifford, and Cliff's subsequent suicide, the residence was set afire by Cheryl and destroyed.
- Rose Blossom
- Cliff Blossom (deceased)
- Penelope Blossom
- Jason Blossom (deceased)
- Cheryl Blossom
- Polly Cooper (temporarily)
- After his body is found, Jason Blossom is buried in the cemetery on Thornhill's grounds. Originally, his parents had buried an empty casket.
- The Blossom family motto, as inscribed on the mansion's front gates is "Radices Currere Abyssi" which translates as “Roots Run Deep".
- Also on the front gates are roman numerals MCMXLI, 1941, likely the year the house was built. (Also the year of Archie first appeared in Pep Comics #22)