Jim Schwarz of Jim's Hostas of Iowa (now owned by Uniquely Hostas of Wisconsin) registered this sport of H. 'Treasure' in 1997. The large size mound grows to about 24 inches in height with a spread of 60 inches. Its leaves are broadly ovate, heavily corrugated and have thick substance. Very pale lavender flowers borne in dense clusters bloom starting in late June.

According to The Hostapedia by Mark Zilis (2009), "Searching for a gold-edged, H. 'Sieboldiana'-type that does not develop spring desiccation burn? Try 'Garden Treasure'."