- HostaHelper from PlantsGalore.Com

Giant Size Hostas	Leaf Color	Variegation	Var Color	Origin	Flower Color	Season	Source	Registered
'Yellow Flash'	Light-Green	Marginal	Yellow	Nat-Sport	Pale-Lavender	July into August	Ruh, Peter	.1997
'Yellow Yeti'	Yellow	-	-	Unknown	-	-	Carlson, Monty & Julie	--NR--
'Yikes! More Stripes'	Dark-Green	Streaked	Yellow	Hybrid	Pale-Lavender	July into August	Elslager, Ed	.2004
'Yosemite Valley'	Yellow	-	-	Hybrid	-	-	Petryszyn, Olga	.2010