Bellflowers: This tough perennial produces spikes of white or blue blooms in early and midsummer. Like most cottage garden plants, the flowers are great for cutting. Full sun or part shade. Grow to 3 feet tall. Zones 3-8
Coralbells: In spring and early summer, Coralbells produce sprays of pink, red, or white flowers. These flowers are a top choice of hummingbirds. Part shade and well drained soil. Grows up to 3 feet tall. Zones 4-8
Foxgloves: This woodland biennial reliably produces beautiful upright spikes of bell-shape flowers in shades of purple, pink, and white. Note: While most common foxgloves are biennial, they often self seed and appear each year in the garden. Partial sun and well drained soil. Grows 2-6 feet depending on the variety. Zones 3-8
Hollyhocks: Among the tallest of perennials, hollyhocks bear flower spikes up to 8 feet tall. They bloom in a wide range of shades -- from nearly black to red, purple, yellow, and white. Full sun and moist well drained soil. Grows 4-8 feet tall. Zones 3-9.
Hydrangeas: shrub of incomparable beauty, hydrangeas produce large clusters of pink, blue, or white flowers in early summer. They're great for cutting, if you can bear to take them out of your garden. Partial sun and moist well drained soil. Grow up to 6 feet tall. Zones 4-9
Peonies: With their petal-packed blooms, peonies are some of the most romantic plants. They not only look great, but they bear a wonderful fragrance. And they're virtually pest free and quite drought tolerant. Full sun and well drained soil. Grow up to 5 feet. Zones 3-8
Phlox: One of the most brilliant plants of the late-summer garden, phlox produces stunning clusters of white, pink, lavender, and red blooms that bear a delightful fragrance. Full sun and moist well drained soil. Grows up to 4 feet. Zones 3-8.
Violets: With their edible and fragrant blooms, violets are among the most charming flowers for the cottage garden. These cool-weather lovers start in spring and often bloom again in fall. Partial to full shade. Grows up to 1 foot tall. Zones 4-8