This medium size (14
inches high by 18 inches wide) "form"
of H. 'Undulata' is a non-registered cultivar from
Wade of Wade and Gatton Nursery (Closed 2019) of Ohio. In contrast to its mother plant, it has a very small
amount of white medial variegation. The leaves are
twisted with a spiral curl in the tip. It bears pale
purple, funnel shaped flowers in June. It is sterile and
rarely sets seeds.