what perennials would do well in poor soil?
We have basically shale, rather dry soil with lots of rocks. We live on top of a hill with lots of wind, so I suspect this contributes to the problem of drying out the soil. I always work in peat moss whenever I plant something or else I doubt if anything would come up. I've basically relied on yarrow (which doesn't do as well as I would have thought), russian sage, coneflower, coreopsis, soapwort (again- depends on the location), daylilies and, amazingly, asiatic lillies - which seem to like our soil and spread like crazy. However, I'd like to add some more variety. We especially have very few spring perennials in the beds.
I've tried so many different things that have died...I've lost count. I had heard that salvia is easy to grow, but mine didn't work. Any suggestions, please let me know. I cannot even grow purple loosestrife...which most poeple can't get rid of once it's started!
Any suggestions, please let me know.