Next year will be a horticultural occurrence or phenomenon I don’t ever remember happening. It is going to be like the gold rush, except this time to get an award-winning plant. We can credit Brent Horvath, owner of Intrinsic Perennial Gardens, with this invention that has everyone excited. It is known as the American Gold Rush rudbeckia. Growers and industry alike are celebrating the first rudbeckia resistant to Septoria leaf spot. You may not have ever paid attention to the leaves of your Rudbeckia fulgida selections or hybrids, but the nursery industry has, and they are helping drive this h…