This cultivar of unidentified parentage (but has Hosta sieboldii in its background) was registered by Russ O'Harra of Iowa in 1986. The miniature size plant grows to 5 inches in height with a width of around 8 inches. Leaf color ranges from chartreuse to deep yellow with large undulations in texture. It blooms from late June into July.

I seem to remember an article by Warren Pollock in The Hosta Journal that Russ O'Harra used the spelling sulphur instead of sulfur because that was how he was taught in his elementary school.