Peter Ruh of Ohio registered this plant on behalf of British hybridizer, Eric Smith in 1997. It is a cross of H. 'Dorset Charm' × H. 'Dorset Flair' which grows into a medium size hosta about 16 inches in height with a spread of 30 inches. The blue-green leaves are slightly corrugated and have thick substance. Pale lavender flowers bloom in July.

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')..."