On a gardening talk show from Salt Lake the expert always stresses that the more expensive irons which can be found at the independent nurseries are the most effective. Even with that application real change may not be apparent til next year. I might also try some weak Miracle Grow for Azaleas and rhodies...it is acid and a good organic mulch. Tree peonies are slow growers here.. I'd try one more year before moving it. Lovely blooms. I was in a friends garden the other day and there were two right next to each other in identical conditions. One was far greener.
