This sport of H. 'Sum and Substance' was registered by Walters Gardens, Inc. of Michigan in 1997. It forms a giant size (36 inches high by 60 inches wide) mound of foliage that is deeply lobed at the base, cupped up and down, and moderately corrugated with thick substance. The leaves are light green with a thin, creamy white marginal variegation. From late July into August, this plant has large pale lavender flowers on 4 foot tall scapes.

According to The Hostapedia by Mark Zilis (2009), "...I have come to like 'Parhelion' more and more."

The New Encyclopedia of Hostas by Diana Grenfell (2009) states: "Very different from all other sports of H. 'Sum and Substance' because of its thin, pale green leaves and narrow white margin...The margin sometimes disappears altogether in parts of the leaf edge. Increases rapidly but is not as robust as other sports of H. 'Sum and Substance'."

In case you wondered, a parhelion is: "A bright spot sometimes appearing on either side of the sun, often on a luminous ring or halo."

An article by Warren I. Pollack in The Hosta Journal  (2020 Vol. 51 No. 1) titled Doppelgänger Hostas: Fancy Name for Look-alike Hostas, included a long list of hostas which various hostaphiles, published articles or other sources have indicated "look" the same. Some of these are, in fact, the same plant with two or more different names. Others are hostas that vary in some minor trait which is not immediately discernable to the casual observer such as seasonal color variations, bloom traits, ploidy, etc. So, as Warren mentions, hostaphiles may differ as to the plants listed but then, their opinions are based on visual observations and interpretations.

H. 'Parhelion' and H. 'Winter Snow'.