FOJ is blackspot prone in my garden as well-it also developed a slight case of powdery mildew, but not as severe as some of the others. It has been a very vigorous grower after a month-long sleeping spell (it was planted in midsummer after surviving a near death experience at our local Wal-Mart), and has now produced a 5 foot basal with numerous offshoots that already have blooms-looks like a winning climber in my garden.--A 2007 update--FOJ is definitely blackspot prone in my area and must be sprayed. During my recent garden renovation, when other BS magnets were removed, this one survived the cut because she is so darn vigorous and is just an absolute bloom machine!