Some of us have watered our southern African bulbs during the summer on purpose or through carelessness and have not had problems. The Great Karroo areas can get some summer rain, which generally comes from the northeast but doesn't reach the south coast of Africa, in contrast to the winter rain, which generally comes from the southwest and doesn't reach too far inland. The Karroo area is in the overlap. I have noticed especially Albuca and Ornithogalum seem not to mind water when it's hot. Albuca clanwilliamgloria seedlings began sprouting here several weeks ago in a large container I left out all summer, exposed to some rain and a garden hose that didn't pay attention. But realize that some winter-growing plants may die if watered even once during hot weather. Lachenalia comes to mind. So if I were perfect I would not water most of my southern African, winter-growing, deciduous-rooted bulbs in the summer. The fleshy-rooted Amaryllidaceae are another situation. Their roots stay fleshy all year and, even during long warm summers, don't wither deep in the ground. These plants struggle in my care unless I manage to keep their roots alive during their long dormancy, especially first-year seedlings. Leo Martin Phoenix Arizona USA