40 Perennial Plants to Create Your Perfect Summer Garden

22. Penstemon

Penstemon is the name of a large genus of flowering perennials, mainly native to the Nearctic climate of North America. This makes them perfect hardy flowers for northern gardeners who seek colorful options for their gardens.

All varieties showcase tubular flowers in a diverse range of stunning shades, with purples being the most prevalent. Many types are not only cold hardy but also desert hardy, allowing them to thrive in various regions.