Allium sphaerocephalon or 'Drumstick Allium' is a lovely addition to the border where it adds interest and movement with its dense egg-shaped flower heads atop straight and slender stems, delicately turning from green to purple as they mature. Blooming in late spring to early summer, this spectacular bulbous perennial adds some dramatic color to the garden. Naturalizes easily and will come back year after year

Appreciated for its intense fragrance, award-winner Lilium 'Regale' is a majestic Lily with huge (6 in or 15 cm long), glistening pure white trumpets facing outward, golden throats and pinkish-purple streaks on the outside. On a still evening, nothing can match the sweet fragrance emanating from its abundant blossoms - up to 25 blossoms per stem for a spectacular long-lasting display. Plant it near a patio and enjoy its intoxicating fragrance!

Winner of the Award of Garden Merit from the Royal Horticultural Society, Verbena bonariensis is a tall and slender-stemmed perennial that displays rich lilac flowers in tight clusters atop long stems that sway gracefully in the summer breeze. They rise well above rosettes of lance-shaped, dark green leaves that hug the ground. A superior nectar plant, hummingbirds and butterflies love it, and so will you!

Adding vertical interest and delicate airiness to the perennial border, Cleome hassleriana 'Rose Queen' is a fast-growing annual plant with dramatic huge, loose balls, 5-6 in. across (12-15 cm) of sweetly fragrant, rose-pink flowers with fascinating long stamens that protrude out, giving them a spider-like look. Fading to pale pink as they mature, they rise above a handsome foliage of aromatic, palmate green leaves with a spine at the base of each leaf. The attractive blooms are followed by thin seed pods that will split open before dispersing the seed within. Blooming over a reasonably long period, from early summer until frost, Spider Flower remains attractive in the cold season thanks to its dried flower heads, which will be visited in fall by birds that feed on the seeds.

Bred for beauty, Oriental Lily 'Casa Blanca' features large, lovely, outward-facing, bowl-shaped, milky-white flowers with gracefully recurved petals and contrasting red-orange anthers. Heavily scented, this elegant Lily can produce up to 6-8 blossoms per stem and will steal your heart! Plant in groups of 3 bulbs throughout the perennial garden for a striking display! And don't forget to enjoy their fragrance on the patio when sitting outside on summer evenings!

Achillea millefolium (White Yarrow) is a graceful perennial wildflower that produces an abundance of huge, flat clusters, 5 in. across (12 cm), packed with 20-25 creamy-white flowers. They are borne on tall stems atop a pleasantly aromatic, green, fern-like foliage that is disease resistant. Both flowers and foliage are attractive and long-lasting, making White Yarrow a wonderful garden plant and a great choice for prairie or meadow plantings.

Hardy and reliable, Agastache 'Black Adder' (Giant Hyssop) is a charming herbaceous perennial boasting bottle-brush, terminal spikes, 6-8 in. long (15-20 cm), packed with fragrant, tubular, two-lipped red-violet flowers emerging from dark buds. Blooming from mid-summer to fall, they provide a remarkably long floral display and add color as well as a lovely spiky texture to the garden.

One of the most suitable lilies for naturalizing, Lilium 'Citronella' is a vigorous Asiatic Lily with charming, showy, golden flowers with speckled, gracefully recurved petals. Unlike most Asiatic lilies, its amazingly decorative flowers do not face up toward the sun but are pendant. Prolific, mature bulbs can produce up to 20 blossoms per stem and will multiply to form clumps over the years.

Monarda 'Vintage Wine' (Bee Balm) is a clump-forming perennial boasting masses of dark, wine-red flowers, borne in dense, globular terminal heads. Blooming for weeks from mid-summer to early fall, they rest upon a whorl of decorative bracts. The colorful and nectar-rich blooms ensure that butterflies and hummingbirds are regular visitors to the garden. Their vibrant color is set off to perfection by the fresh green leaves, which are delightfully fragrant and can be enjoyed in salads or simply by passing by. This Monarda is significantly more resistant to powdery mildew than most varieties.

An exceptionally long and prolific bloomer, award-winner Helenium 'Sahin's Early Flowerer' features cheerful daisylike flowers, with long petals surrounding a prominent chocolate brown center disk that is covered with golden pollen and attracts butterflies. Opening orange-red, the petals fade progressively to orange and yellow as they mature. This fabulous perennial provides weeks of splashes of color, from early summer to fall, when many other perennials are starting to fade. Grows up to 4 ft. tall (120 cm). Very attractive as cut flowers, it has a good resistance to most insects and diseases

Award-winner Lilium 'Golden Splendour' is a fascinating Trumpet Lily with huge (6 in or 15 cm wide), vibrant golden yellow trumpets, facing outward or somewhat downward, marked with burgundy on the outside. Celebrated for its delicious fragrance, this prolific Lily produces clusters of 12-20 blossoms per stem for a spectacular long-lasting display.

Geranium 'Rozanne' is an exceptional, unique, and unsurpassed geranium selection. There are not enough superlatives to describe this fabulous perennial. Robust and vigorous, with one of the longest flowering periods of all hardy geraniums and rare blue-colored flowers of great decorative beauty, it is an ideal element of the garden, patio, or balcony. A prolific bloomer, it continuously produces masses of large violet-blue flowers with attractive purple-violet veins and small white centers for months of color from late spring to the first frost.

Spectacular and easy to grow, award-winning Lilium Henryi (Henry's Lily) is simply irresistible with its clusters of nodding flowers featuring maroon spotted, upward curving orange tepals, delicately and gracefully brightening up the surroundings from mid to late summer. Towering up to 4-8 feet tall (120-240 cm) on slender stems clad with lance-shaped deep green leaves, it comes back year after year and constitutes an excellent border plant

Vigorous and charming, award-winner Campanula glomerata 'Superba' (Clustered Bellflower) is a rhizomatous perennial with upward facing, bell-shaped, rich violet-blue flowers held in dense clusters counting up to 15 flowers. Blooming mostly from late spring to early summer, the flowers are borne atop sturdy leafy stems above a spreading rosette of ovate to lance-shaped, toothed, green leaves. A dashing focal point in the garden, this Bellflower is perfect for a sunny or partly shaded herbaceous border. Great as groundcover too!

One of the largest hardy species, award-winning Geranium psilostemon (Armenian Cranesbill) is quite eye-catching with its large magenta cup-shaped flowers, up to 1.5 in. wide (4 cm), with black centers and dark veining, rising atop broad, exotic fan-shaped leaves that turn red in fall. Putting on a great show from late spring to late summer, this hardy Geranium is reliable, easy to grow, and provides long-lasting color for any garden.

Cultivated for centuries, award-winner Lilium candidum is a majestic Lily with large (2-3 in or 6-8 cm long), glistening pure white trumpets facing outward and bright yellow pollen. Celebrated for its intense and delicious fragrance, this prolific Lily produces clusters of up to 20 blossoms per stem for a spectacular long-lasting display. Plant it near a patio and enjoy its intoxicating fragrance on a summer evening! Reliable and easy to grow, this tremendous Lily won the prestigious Award of Garden Merit of the Royal Horticultural Society.

Blooming its heart out, Rose Flower Carpet Pink Supreme is an impressive groundcover rose which produces abundant clusters of bright lipstick-pink flowers with white centers, 2 in. wide (5 cm). Up to 60 flowers and developing buds can be produced on a single stem and a mature plant can produce up to 2,000 roses during the season (!). The fresh and iridescent blossoms are borne atop a compact and dense bush of rich glossy dark green foliage that is noted for its strong disease resistance.

Tough and durable, Baptisia australis (False Indigo) is an upright perennial with a long season of interest. In spring, this native to the North American prairies bears spikes of pea-shaped indigo blue flowers, resembling Lupines. They last for about three weeks and attract butterflies, bees, and hummingbirds. When the flowers fade away, the lovely blue-green, trifoliate leaves remain neat and form a lovely backdrop for the other perennials in the garden. If left untrimmed, the plant forms interesting seedpods turning deep black in the fall and persist into winter.

Hardy and undemanding, Lilium bulbiferum var. croceum (Orange Lily) is one of the most beautiful Lily species with its flamboyant, wide open, brilliant orange flowers, up to 2-3 in. wide (5-8 cm), that deepen to red toward the petal tips. The blossoms are elegantly spotted with dark chocolate raised freckles. Unlike most Lily species which favor pendant blossoms to protect their pollen supplies, Lilium bulbiferum features upward-facing flowers, seeking to attract passing insects to help with pollination. Native to Southern Europe, this strong, exuberant and fast-growing Lily is one of the earliest Lilies to bloom in the garden. Mature bulbs usually produce up to 6-7 blossoms, but it has been recorded as several times as many.