What is the longest flowering hardy perennial?
Some of the best include geranium rozanne, famous for its incredibly long flowering season, and salvia caradonna, which blooms early and often. Gaura whirling butterflies, verbena bonariensis, scabiosa butterfly blue and nepeta six hills giant also flower for much of the summer. In general, daylilies are a great perennial addition, but the stella de oro’s are some of the earliest and longest blooming varieties. Coneflowers or echinacea have perennial flowers that bloom through summer in pink, purple, white, orange, red, or yellow.
What plant has the longest flowering season?
Geranium. Probably one of the longest flowering garden plants, hardy geraniums start flowering around may, and continue to october, depending on the variety. One of the longest flowering varieties is geranium ‘johnson’s blue’ (illustrated) which is also attractive to bees. Anise hyssop. One of the longest blooming series of fall perennials in our lineup are the meant to bee® anise hyssops. You’ll find pollinating bees, butterflies and hummingbirds enjoying their colorful, tubular blooms from midsummer into fall, but thanks to aromatic foliage, deer tend to pass them by.