Spectacular when in full bloom, Purple Loosestrife (Lythrum salicaria) is a vigorous, upright perennial enjoying an extremely long bloom season from late spring to late summer. It features pink, purple, or magenta flowers in dense spikes, up to 18 in. long (45 cm) held atop lance-shaped leaves. Typically 2-4 feet tall (60-120 cm), Purple Loosestrife is considered invasive in North America where it can rapidly colonize wet areas. Sterile cultivars should be selected.

Tall and spectacular, award-winning Queen of the Prairie 'Venusta' (Filipendula Rubra) is a splendid herbaceous perennial with large, elegant sprays of small deep pink flowers borne on leafy stems well above the foliage from early to late summer. Pleasantly fragrant, the graceful blossoms mature to pale pink over time and are nicely complemented by deeply cut, bright green leaves that are equally fragrant. Tough, long-lasting, this U.S. native perennial is valued for both its leaves and its flowers. Growing up to 4-8 ft. high (120-240 cm), Queen of the Prairie is easy to grow, requires very low care and is pest and disease-free! Deer and clay tolerant too!

A spectacular sight in summer, award-winning Monarda didyma x fistulosa 'Oneida' (Bee Balm) is a clump-forming perennial boasting masses of bright scarlet flowers borne in dense, globular terminal heads. Blooming for weeks from mid-summer to early fall, they rest upon a whorl of decorative chocolate bracts and attract scores of butterflies and hummingbirds. Their vibrant color is set off to perfection by the bright, fresh green leaves, which are delightfully fragrant and can be enjoyed in salads or simply by passing by. Considered to be the best of the red Monardas, 'Oneida' is significantly more resistant to powdery mildew than older varieties.

A fabulous variety of Culver's Root, Veronicastrum virginicum 'Diane' displays eye-catching branching spires of pure white flowers from mid-summer to early fall. With a candelabra look, these graceful inflorescences are nicely complemented by lanceolate, dark-green leaves that are arranged in whorls around the stem. Tough, and long-lasting, this Veronicastrum is perfect for adding interesting vertical lines and late summer color to the garden. Deer resistant, it attracts scores of butterflies and is highly prized for its cut flowers!