I live in zone 7B (Delaware). I planted five plants in the Spring and they are doing well. I’m hoping for perennial results?
Plants are in a subtly raised area that is mulched. They have good drainage.
I'm not sure what you have planted, try checking the plant tags that came with the plants to ensure you are providing the correct care.
Well drained soil is very important in the garden and it sounds like you have successfully provided this!