Rhodos have shallow feeder roots so some care is required when working around the base of this shrub. Use caution when using your hand weeder! Spread at least 2-3 inches of mulch around the base to retain moisture and prevent weeds. Rhodos love moisture but they do not like standing water. If you have drooping leaves this may be an indicator of root rot from poorly drained soil.  You can also underplant a rhododendron with shade-loving perennials like bleeding hearts or ferns to keep their roots protected and cool.