Registered by Clarence Owens of Michigan in 1987 as a cross between H. 'True Blue' × H. 'Gold Regal'. It forms a semi-upright large size (24 inches high by 55 inches wide) mound of blue-green foliage that is moderately corrugated, deeply cupped, slightly unruly and wavy. The flowers are medium lavender and appear in July followed by viable seeds.

According to The Hostapedia by Mark Zilis (2009), "As time passes on, my high opinion of 'Blue Betty Lou' continues to grow. Not only is this cultivar distinctive, but it also makes an excellent landscape plant."

From the Field Guide to Hostas by Mark Zilis (2014), "...has been a favorite breeding plant of mine for many years.

Also, "H. 'Blue Betty Blue' = H. 'Blue Betty Lou'..."

The New Encyclopedia of Hostas by Diana Grenfell (2009) states: "Among the most turquoise-hued hostas."