Does anyone know what could be causing the dark brown spots on the top of this gazania leaf? The spots are not on the bottom of the leaf - it is still white. The spots are not on all the plants. There are about 20 plants and only 5 or 6 in one row, next to the redwood deck have this problem. The plants are not on any irrigation, but watered by hand every 3 days. A nursery said that the plants were getting too much water, but that doesn't make sense since only some of them have the spots. Any ideas?
