I haven't seen those here, they sound interesting. Apparently only hardy to zone 7 though so wouldn't be perennial for Lisa and me. I think part of the problem with Gerbera here is tarnished plant bugs (Lygus lineolaris) but I had two last year where one quit flowering at all fairly quickly while the other struggled on somewhat longer. I haven't bothered to check yet if they are short day, long day or day neutral for flowering....