tissue culture sport of H. plantaginea was
Inc. of Michigan in 1988. It was under U.S. Plant Patent from 1990 to
Clarence (C.H.) Falstad, III but that has since expired. It forms a medium
size plant with streaked foliage that is yellow-green along the
margin of the leaves.
The Hostapedia by Mark Zilis (2009), "There are few, if any, plants of 'Heaven Scent' clinging
to life these days."