Why won't Karen Azelea's grow?
I'm trying to grow some Karen's Azelea's in a large bed under a shagbark hickory tree, along with pulminaria, heuchera, daylillys and vinca. Everything else is doing beautifully. They get several hours of late afternoon sun. My landscaper replaced 3 of the 5 last fall (after 1 year and nearly total leaf loss) and this spring 4 of the 5 look like they are dying, though a number of the bare branches have flowers on them. You can still see the outling of the original soil from the container, as if the growing soil is not blending at all with my own soil. They also seem to have quite a bit of winter heave pushing them up. I see this azelea in other people's gardens with lots of green leaves and covered with flowers in season. I have mostly bare branches or spotty leaves. What is going on? Am I doing something wrong? I think my landscaper is going to replace them one more time, but she is also confused. Any advice is very welcome!