A sport of H. 'Blue Skies',
this is a non-registered cultivar from
Roy Klehm of Klehm Nursery in Illinois. The leaves
have a green center with a narrow white marginal variegation. It
forms a medium size mound that bears pale lavender flowers from mid-August into September.
The Hostapedia by Mark Zilis (2009), "The plant described here was originally known as 'Emerald
Blue Skies', then 'Emerald Skies'. Somehow 'Emerald Skies'
became a green-leaved plant and the form with a very narrow
white margin, almost by default, became 'Exotic Blue Skies'."