My Red Robin appears to be dying. I have one in the back garden that’s flowered and looks stunning but the one in my front garden is struggling. The red leaves are drying up and the flowers heads too and instead of shiny red they are a rusty colour and dry/dead. There is growth and flowers on the very top. We’ve checked the lower branches going into the soil and there are no cracks or breaks. It’s been doing well for over 6 years but this spring the leaves started drying out/dying. I’ve tried watering it though we have had decent rainfall. Can anyone offer advice or is there anything we can do?