A hybrid of H. 'Versailles Blue' × H. 'Tokudama Flavocircinalis', this cultivar was registered by
Rod Lysne of
Northern Grown Perennials in Wisconsinin 2006. It is a
giant size plant growing up to 3 feet tall
and spreading to 50 inches. The leaves are heavily corrugated
with thick substance. In late June, pale lavender flowers bloom on
scapes up to 3 feet.
According to the Marvel Comics website, "Jotunheim
is one of the Nine Worlds from Norse mythology, the homeland of
the Frost Giants..."