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.
Or use an acid-type fertilizer. It's also good on azaleas, hollys, and various other evergreens.
gloria p
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.