Bahama Butterscotch was one of the 1st daylilies I started with. I have always heard that daylilies need to be divided, or they will stop blooming well. Mine probably went 20 years before i divided, it was a massive daylily when I did divide it into 5 still large clumps, and gave a bunch away. Mine is taller, maybe 22 to 24" here. Dependable heavy bloomer, I have gotten some rebloom from it, but not often. It is planted in the worst soil in my garden, far away from a garden hose so it gets totally neglected. Still does great. I do wish the flowers were bigger, but it makes up in other ways.
