Eldren Minks of Minnesota registered this hybrid of H. 'Crested Reef' × H. 'Candle Wax' in 1980. It forms a medium to large size mound of dark green foliage whose leaves are corrugated and moderately wavy. Very pale lavender flowers bloom from late June into July.

According to The Hostapedia by Mark Zilis (2009), "I'm not sure how 'Green Dome' got its name, because individual leaves are not dome-like."