Answer: Here are a few suggestions for a sunny flower bed:
Aquilegia x hybrida 'Firecracker'; Aster tataricus 'Blue Lake'; Coreopsis pubescens 'Sunshine Superman'; Echinacea purpurea 'Big Sky Sunrise'; Heliopsis helianthoides 'Summer Nights'; Oenothera species 'Lemon Drop' (evening primrose); and Stokesia laevis 'Peachey's Pick' (Stoke's Aster). All have grow well in your gardening region in trial gardens so I think it's safe to say they will thrive in your garden as well.
Your roses should have bloomed this summer so I'm not sure why they didn't. In general terms, roses need all day sunshine, regular applications of water and fertilizer. It's too late in the season to prune them back to encourage new flowering stems so I'd wait until next spring to do any pruning. When leaf buds just begin to swell, cut the canes back to about 18". This will encourage new growth and you should get flowers next summer.
Best wishes with your garden!
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