The Botanical Garden was incorporated in 1984 and took responsibility for developing four acres of state-owned land within the Old Penitentiary Complex in Boise. The site includes the 1907 Heating Plant. The sandstone for the building was quarried from nearby Table Rock.
The Idaho Botanical Gardens (Old Pen Heating Plant) Boise, Ada County
Grant: 1992
Location: 2355 N. Old Penitentiary Rd., Boise, Idaho 83712 View Google map