Kumquats grow in my Houston backyard without any tending. Recently, I noticed they have developed a fungus that must be treated. "As soon as the weather clears," I think. We had a big rainstorm and the forecast is for much cooler weather. Someday, these plants may bear fruit. For now I enjoy the metamorphosis from light fuzzy leaves to the long, slender green ones, as they mature. A question: Do you know where kumquats originated?