Answer: It's not unusual for new rhodie leaves to be lighter in color than the older leaves. They will darken as they mature. You're correct, though, that the plants prefer to grow in acidic soils. Coffee grounds are a reasonable addition to the mulch material, but you may get better results if you mulch rhodies with peat moss, which is quite acidic. Or, you can feed your rhodies with a specialized food that contains acidifiers. In either case, be sure to supply your plant with about an inch of water per week during the growing season to help keep it healthy.
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