H. 'Edward Wargo' is a seedling of H. 'Hadspen Blue' that was registered by Henry Weissenberger of New York in 1986. It is a medium size plant growing to about 16 inches in height and 40 inches wide. The roundish leaves are moderately corrugated and have thick substance. In late July, it blooms with lavender flowers.

According to The Hostapedia by Mark Zilis (2009), "Despite being registered almost twenty years ago, 'Edward Wargo' (sometimes listed as 'Ed Wargo') is still an unknown commodity to most host collectors. I've only seen it in a few collections."