This cultivar has highly variable
streaked foliage and forms a medium size (17 inches high) mound.
Pale lavender flowers that are fragrant appear in August. It is
another of the
Gate Series originated by
Van Sellers from a cross of H. plantaginea x H. 'Tokudama
The Hostapedia by Mark Zilis (2009), states "I once compared the leaves of seven 'Iron
Gate Supreme' clumps growing in different gardens and came up
with the expected result. Only two clumps had leaves that were
consistently streaked. The leaves of three clumps
had sported to
stable, green-margined, white-centered form, one had
white-margined, streaky-centered leaves, and one had all-green
An article by Warren I. Pollock in
Hosta Journal (2002 Vol. 33 No. 2) states that, "For readers not familiar with 'Iron Gate Supreme', the leaves have an unstable variegation. The base leaf color is green. Some leaves have white centers,
others white margins, and still others are variably streaked and centered."