This cultivar was originated by Heinz Klose from Germany and registered by Peter and Jean Ruh of Ohio in 2003. It grows about a foot tall and spreads to 20 inches wide with leaves of thin substance. Lavender flowers with purple stripes bloom in July.

Lemon Butterfly and there is a cultivar by the name of H. 'Lemon Butterfly'.

Nomenclature changes recommended in the 1991 book The Genus Hosta by W. George Schmid and accepted by The American Hosta Society would update names as follows: H. x tardiana is now Tardiana Group.

An article by W. George Schmid in The Hosta Journal (1985 Vol. 16) states that, "In England, Heinz Klose obtained a number of H. x tardiana plants after Eric Smith left Hadspen House nursery. He is also actively selecting and propagating H. 'Semperaurea' seedlings...Named by him are several hybrid seedlings: H. 'Goldpfeil' ('Gold Arrow'), H. 'Weisse Glocke' ('White Bell'), and H. 'Zitronenfalter' ('Lemon Butterfly')...special cultivars with H. 'Sieboldiana' lines are: H. 'Blauglut' ('Blue Glow') and H. 'Blaue Wolke' ('Blue Cloud') which reminds one of H. 'Blue Heaven'...with his H. x tardiana...has named one H. 'Irische See' ('Irish Sea')...H. 'Nordatlantic' ('North Atlantic')..."