Registered by Ed Schulz of Iowa in 2012, this upright growing cultivar is of unidentified parentage. It is a large size (26 inches high by 42 inches wide) hosta with green yellow foliage. The leaves are broadly ovate, moderately corrugated, wavy and dull on top. Tubular flowers bloom from mid-June into July on scapes 22 to 30 inches tall.

According to the registration materials: "...sun fast, abundant bloom scapes and flowers...changes to golden yellow..."

An article in The Hosta Journal, (2017 Vol. 48 No 1), says that the Ohh! stands for Old Home Hostas.