On Sat, 10 Apr 2010 03:05:33 -0400, atropica
wrote:


I would love to grow a Rhododendron sinogrande but my soil PH is around
6.5 (about the same as rainwater). The RHS recommend a soil ph for
Rhododendron of between 4.5 and 5.5. Does it really matter that much?

For best results, yes. You can mulch with peat moss to help keep a
low pH.