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."
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
Warren I. Pollock
wrote comments about the
many sports of H. 'Blue Mouse Ears' (which he termed
Hosta Journal (2012 Vol. 43 No. 2). He stated, "Jan van den Top
reports 'Mighty Mouse' and 'Lucky Mouse' are the same hosta. Also,
'Frosted Mouse Ears'
comes up from the ground with plain blue-green leaves. After a month or so,
a creamy-white margin develops somewhat more yellowish than others in the
variegation group. This is in agreement with
observation that the margin of 'Frosted Mouse Ears' seems to be slightly less
white than 'Mighty Mouse'. Recall: 'Frosted Mouse Ears' is from 'Royal Mouse Ears'."
Iota', 'Mighty Mouse' and 'Lucky Mouse' emerge in the spring with bright
creamy-yellow margins that turn creamy white by summer. All have very similar
foliage characteristics, often indistinguishable from each other unless examined
carefully for minute yellowish hue difference...H. 'One
Iota' and 'Lucky Mouse'
appear to be the same, having a bit yellower margin than 'Mighty Mouse'. This
would be expected since 'Lucky Mouse' sported from 'One
Iota Supreme' that
reportedly sported from 'One
An article by
Warren I. Pollack in
Hosta Journal (2020 Vol. 51 No. 1) titled
Doppelgänger Hostas: Fancy Name for
Look-alike Hostas, included a long list of hostas
which various hostaphiles, published articles or other sources have
indicated "look" the same. Some of these are, in fact, the same
plant with two or more different names. Others are hostas that vary
in some minor trait which is not immediately discernable to the
casual observer such as seasonal color variations, bloom traits, ploidy, etc. So, as Warren mentions, hostaphiles may differ as to the
plants listed but then, their opinions are based on visual observations and interpretations.
Mouse Ears', H. 'Lucky
Mouse', H. 'Mighty
Mouse', H. 'Moonshine
Mouse Ears', H. 'Mouse
'Mighty Mouse' was included in two separate look-alike lists
in the article. One was a list of medial (center) variegated plants
while the list above includes marginally variegated hostas.
Since 'Mighty Mouse' is marginally variegated, the inclusion on this
list appears to be correct.