'Sweet Joanne' features lavender-pink bells with white throats and bright magenta veining that guide hummingbirds and other pollinators to the nectar within. This hybrid Penstemon may look dainty, but it's vigorous and hardy to Zone 5. Plants form dense clumps that will increase in size each year, tolerate drought, and are rarely bothered by pests or disease. Lovely with purple and pink Geraniums in full sun and well-drained soil. PP 20,610

A very large genus of herbaceous perennials, most native to North America. Their colorful, tubular flowers are borne in profusion close to the stems and the nectar is relished by hummingbirds. Most species require well-drained or very well-drained soil and full sun.