Showy perennials in Colorado
My sister in Colorado (near Boulder) is convinced that she can not grow perennials in her patio pots--but she is tired of redoing annuals every year. I am tryng to convince her that perennials will truly light up her life, but since I live in the Pacific Northwest, the examples from my yard aren't necessarily travelling well.
Any suggestions? I think she would accept herbs and ornamentals, but not vegetables. Orientation is sun to part sun and I realize that wind and dry are features of this area. She is accustomed to having some hanging containers and others on the patio.
Describe your most glorious containers, and I will take from there.