Hello! This rhododendron is getting yellow leaves with brown edges.  Should I remove those leaves, and how should I treat this? I water regularly, it gets lots of afternoon sun and the soil may not be draining that well. We recently dug up all the grass and are starting a garden in this area.  This rhodie was planted last fall.  Also should the wood chips go right up to the plant or do I need to leave some space around it ? Thank you!  Nora