Experts and BHG readers answer.
Help in planning a tricky garden spot
Thanks for writing. It sounds like some ornamental grasses, including miscanthus (http://www.bhg.com/gardening/plant-dictionary/perennial/miscanthus/) might be good choices for you, as well as versatile plants such as aster, bellflower, and amsonia.
As the area is dry, I'd recommend adding lots of extra organic matter, such as compost, to the soil. That will help your plants more than anything because it will help the soil hold moisture better when it's dry, but also drain better after rains.
For more suggestions, check out our Plant Encyclopedia: http://www.bhg.com/gardening/plant-dictionary
Thanks for writing. I hope this helps!
Senior Garden Editor, BHG.com
Better Homes and Gardens