Walters Gardens, Inc. cultivar is a sport of H. 'Blue Mouse Ears' that they registered
in 2006. It becomes a miniature size (4 inches high by 8 inches
wide), dense mound with purple flowers in
dense clusters in July. This is part of the
Series of hostas.
The Book of Little Hostas by Kathy and Michael Shadrack
(2010) says: "Does best in early morning sun and dappled shade. An
ideal cultivar for the tray and trough."
Similar cultivars include H. 'Frosted Mouse
van den Top, hybridizer from the Netherlands, believes that
H. 'Mighty Mouse' is
actually the same as H. 'Lucky
Ellen Cool of Stone Garden Designs in Massachusetts
feels that H. 'Lucky
Mouse' seems more slug
resistant than H. 'Mighty