My own twist to add is that if you have different areas it may be that what doesn't perform well in one area may just zing in another. I'm glad I planted Darker Shade in my deep-shade garden its first year ... gorgeous blooms that literally took my breath away. But, then I brought it to a partial-shade to full-sun area ... less lovely. Color, size, everything ... such a difference. So, for display-only purposes, if something doesn't grab you in one flower bed, maybe try another?
