This white edged sport of
H. sieboldiana 'Northern Halo' was registered by
Wade in 1999.
It forms a large size (24 inches high by 70 inches wide) mound and has thick substance to its leaves.
The near white flowers are borne from June into July. They have a
pale lavender stripes on the petals and bear viable seeds.
The Hostapedia by
(2009), "...'American Halo' was selected as an improved form
of H. sieboldiana 'Northern Halo', a much-maligned cultivar with
several divergent clones."
The New Encyclopedia of Hostas (2009)
states: "Slow to establish but eventually becomes a huge
mound...Winner of the 2002 Alex J. Summers Distinguished Merit
Hosta Award...Larger than its parent with a wider leaf margin."
Similar cultivars include
H. 'Barbara Ann'
and H. 'Northern