coldlime!
I am going to take a stab at this since you said you bought them at Lowe's. In google, I typed "dwarf daylilies at Lowes" and there is a listing for "Monrovia 3-Quart Happy Returns Dwarf Daylily" on their website. Of course, that doesn't mean that is the only cultivar they sold as dwarf.
I can also attest that Happy Returns puts out a lot of seed pods. It gets about 12-18" in height. If they are a lemon yellow when blooming, it is probably HR.
