One of the Rhododendron plants seems to be doing badly
Hello - We have these 2 Rhododendron plants, since over 8 years. They were very small when they were plotted in 2 separate large rectangular bins. They have become rather large now; they get enough flowers every spring, and grow shoots every year, getting bigger and taller. This spring one of the Rhododendrons had about 10 flowers - i will call this one as "A". The other had about 50! Let me call this plant as "B". Now, even though A had fewer flowers, it definitely threw out more shoots and has grown taller, with many, many healthy new leaves. Plant B instead seems to have had very little new growth. The leaves have become a pale navy green, with cigaring, much like in the dead of winter, and appear to be narrower than the healthy, wider-leaved plant next to it. It is odd as this plant had some much bloom this year in May. Is this plant dying? Can we do something to help it get healthy. Please help if you can. Thank you so much, Bindu p.s. Attached is a pic of the two Rhododendrons side-by-side, and then 2 pics, 1 of the leaves of the not-doing-well plant B, and the other of the healthy plant A.
Philadelphia County Pennsylvania