Posted: 18/02/2016 at 22:28
Cheryl, I am surprised that hydrangeas grow there...do they flower well?
hardy geraniums, brunneras, anemones would do well there.
can you incorporate some bulky organic matter in your plot? Hackonechloa, bowles Golden Grass, astrantias, astilbes, sarcoccocas, many asters, phloxes, carex like Testacea, deschampsias, liriopes, acteas, aconitums, eunymous varieties, arum lilies, ferns, libertias, heucheras, ophiopogons, and more would do well then esp if you can water now and then too