I've had Gordon Biggs for many years. When I first received GB I planted it in a pot. It didn't bloom for years. I decided to move it in the fall of 2015 to a bed. It finally bloomed in 2016. Since then it has bloomed every year. The bed I have it in is part shade and it has to compete with a lot of other daylilies and tree roots. Needless to say, it isn't a great performer for me but is still very reliable.
It blooms mid-season for me and although registered as a semi-evergreen it acts more like a dormant in my garden. Increase has been slow but steady.
