A large size hosta, this non-registered cultivar is a sport of H. 'Frances Williams' originated by
Royall Bemis of Blackthorne Gardens in Massachusetts. It is of the
H. 'Sieboldiana'-type with gold colored
The Hostapedia by Mark Zilis (2009), "...synonymous with...'Golden
Sunburst'. The name
'Golden Mammoth' predates 'Golden Sunburst'..."