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Perennials

A perennial plant or perennial (Latin per, "through", annus, "year") is a plant that lives for more than two years. When used by gardeners or horticulturalists, this term applies specifically to winter hardy perennial herbaceous plants. Scientifically, woody plants like shrubs and trees are also perennial in their habit.

Perennials, especially small flowering plants, grow and bloom over the spring and summer and then die back every autumn and winter, then return in the spring from their root-stock rather than seeding themselves as an annual plant does. These are known as herbaceous perennials. However, depending on the rigors of local climate, a plant that is a perennial in its native habitat, or in a milder garden, may be treated by a gardener as an annual and planted out every year, from seed, from cuttings or from divisions.

Acanthus 'Whitewater'

Acanthus 'Whitewater'

Variegated Bear's Breeches

Bold, deeply jagged, variegated leaves of green and white form the dense base of this spiky plant with its ornate white and pink flowers rising above it.  Acanthus 'Whitewater' has a vigorous growth habit. This relatively low maintenance, hardy plant will continue to proliferate if cut back in fall to prepare for the cold winter months.  Asexual propagation is prohibited.

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Achillea 'Little Moonshine'

Achillea 'Little Moonshine'

Dwarf Yarrow

Achillea 'Moonshine' has been one of the most popular garden yarrows for over 50 years, and 'Little Moonshine' offers the same lemony yellow flowers and gray-green filigreed foliage but in a shorter more petite form that will not flop. Long blooming from May through September, 'Little Moonshine' will rebloom if cut back after initial flowering.

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Achillea millefolium 'Pink Grapefruit'

Achillea millefolium 'Pink Grapefruit'

Yarrow

'Pink Grapefruit' is a garden workhorse, a tough and maintenance free perennial. Lavender-pink flowers appear above the fragrant feathery foliage from June to July. Deadheading the flowers will encourage rebloom. A wonderful perennial for cut and dried flowers. Deer resistant. Asexual propagation prohibited.

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Achillea millefolium 'Strawberry Seduction'

Achillea millefolium 'Strawberry Seduction'

Yarrow

Finely dissected bright green foliage is topped by velvety red flower clusters with bright yellow centers. 'Strawberry Seduction' is a reliable addition to perennial borders or containers and will hold its bold red color well as a fresh or dried cut flower. In addition to its heat and humidity tolerance, Achillea' Strawberry Seduction' is deer resistant thanks to its fragrant foliage. Deadhead to encourage reblooming. Needs good drainage. Asexual propagation prohibited.

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Actaea matsumurae Chocoholic

Actaea matsumurae Chocoholic

Black Cohosh

Actaea (formerly Cimicifuga)is a lovely addition to the moist shade of the woodlands edge. Standing nearly 4-5' tall with bronze purple leaves and spikes of rich mauve bottlebrush flowers, 'Chocoholic' offers height, texture and color contrast to the shade garden.

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Adiantum pedatum

Adiantum pedatum

Northern Maidenhair Fern

Adiantum pedatum, Northern Maidenhair Fern, is a delicate native fern with a circlet of light green fronds horizontally held aloft on wiry dark stems. Prefers bright shade and loose, rich soil, spreading by rhizomes it is particularly beautiful en masse.

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Agapanthus Northern Star

Agapanthus Northern Star

Lily of the Nile

Resembling an oversized and exquisitely colored onion flower, Agapanthus 'Northern Star' has fleshy green strap-like foliage with sturdy stems supporting masses of rounded flower heads comprised of numerous blue star shaped flowers. An impressive and long blooming, but somewhat tender, perennial, the rich, intense blue color of this selection is outstanding in the late summer garden.

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Agastache 'Blue Boa'

Agastache 'Blue Boa'

Anise Hyssop/Hummingbird Mint

'Blue Boa' is a new Agastache with deep violet blue flower spikes that are long, thick and very showy throughout the summer.  Licorice scented foliage makes this perennial deer resistant.  Attracts hummingbirds and butterflies.  Asexual propagation prohibited.

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Agastache Kudos 'Kudos Mandarin'

Agastache Kudos 'Kudos Mandarin'

Dwarf Hummingbird Mint

Bred to be the hardiest of orange flowering agastache, Kudos Mandarine's plumes just bloom and bloom while the foliage maintains a neat appearance, making it a great selection for the sunny garden. Asexual propagation prohibited.

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Agastache 'Raspberry Summer'

Agastache 'Raspberry Summer'

Hummingbird Mint

'Raspberry Summer' is a long-blooming perennial that is covered in large, dark pink flower spikes from summer and into fall. It's aromatic foliage smells of mint and licorice. This easy to grow perennial is drought tolerant and attracts hummingbirds and bees.

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Agastache Rosie Posie

Agastache Rosie Posie

Anise Hyssop

Like all Agastache,'Rosie Posie' is drought tolerant, deer resistant, with licorice scented foliage. From early summer until frost, 'Rosie Posie' has hot pink flowers with magenta calyxes that prolong the perceived bloomtime, atop a neat ball-shaped clump of foliage.

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Ajuga reptans 'Burgundy Glow'

Ajuga reptans 'Burgundy Glow'

Common Bugle Weed

Green foliage is splashed with pink and white. The interest continues in the fall as the leaves take on tones of bronze and rose. A valuable ground cover in areas where its vigorous nature is desired. Also makes a nice component plant in mixed containers.

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Ajuga reptans 'Catlin's Giant'

Ajuga reptans 'Catlin's Giant'

Common Bugle Weed

Blue flower spikes rise above the large, bronze-green leaves that fill in quickly. A valuable ground cover in areas where its vigorous nature is desired. Also makes a nice component plant in mixed containers.

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Allium 'Millenium'

Allium 'Millenium'

Onion-Ornamental

A long-blooming selection with two inch rosy-purple flower heads. These globe-shaped flowers are held high above a mound of attractive, glossy green foliage in late summer. Attractive seed heads appear after flowering. An excellent deer and rabbit resistant perennial.

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Alocasia 'Calidora'

Alocasia 'Calidora'

Elephant Ear

Huge, heart shaped, dark green leaves elicits excited stares from passers-by. Instantly adds height and a full blown tropical look to the summer garden. Great in large planters. Not winter hardy, but easily stored over winter if the tuber is harvested before frost.

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Amorpha canescens

Amorpha canescens

Lead Plant

Awesome native rarely seen at retail. More of a shrub than a perennial but so are lavender and Perovskia. Fine textured, silvery gray foliage with bright purple flower spikes with yellow flower parts. It's so vibrant that it looks electric and a little fake. Leguminous so fixes nitrogen. It's one of the plants popular in the New Perennial Movement. Blooms in summer and seed heads last into winter.

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Amsonia hubrichtii

Amsonia hubrichtii

Arkansas Amsonia

This native plant offers early pale blue flowers on feathery foliage. It is very low maintenance, and has beautiful butter yellow foliage in the fall. Best when massed.

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Amsonia tabernaemontana 'Storm Cloud'

Amsonia tabernaemontana 'Storm Cloud'

Bluestar

An excellent low maintenance, easy to grow native perennial that deserves a spot in the landscape. Amsonia t. 'Storm Cloud' has long seasonal interest including the emerging black stems, the masses of blue star-shaped flowers in spring which re-bloom for weeks, the size and habit for presence and the yellow fall foliage. Very tolerant of many conditions.

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Amsonia x 'Blue Ice'

Amsonia x 'Blue Ice'

Blue Star

Clusters of lavender blue, star shaped flowers top mounds of willow-like foliage in late spring until early summer. Foliage turns a rich golden color in the fall. The compact habit makes it suitable for smaller spaces. Native, deer resistant, and drought tolerant once established.

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Andropogon gerardii 'Indian Warrior'

Andropogon gerardii 'Indian Warrior'

Big Bluestem

'Indian Warrior' forms a very upright vase of green foliage that takes on first purples then bronzes as summer turns to autumn. It makes a terrific and colorful alternative to the larger Miscanthus. Big bluestem is a tall, native grass that used to be the dominant grass of the tall grass prairies of North America. It's also called turkey foot because the flowers resemble...well...a turkey's foot. Another terrific big bluestem from Brent Horvath.

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Andropogon gerardii 'Red October'

Andropogon gerardii 'Red October'

Red October Big Bluestem

The keyword for this stunner is 'red'. Red highlights on deep green leaves in spring then in autumn, the leaves redden, mature to burgundy, becoming absolutely scarlet at first frost. Even the turkey foot seed heads are a burgundy red! This upright, tough native is particularly showy in a fall blooming perennial border. Asexual propagation prohibited.

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Anemone x hybrida 'September Charm'

Anemone x hybrida 'September Charm'

Japanese Anemone

Burgundy buds produce 2 1/2" single, pale pink flowers over mounding green foliage. An old-fashioned favorite that makes a great back of the border plant for late summer and fall flowers.

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Anemone x hybrida 'Whirlwind'

Anemone x hybrida 'Whirlwind'

Japanese Anemone

'Whirlwind' has tall stems that hold white, semi-double flowers in late summer or early fall. Enjoy these blooms even through a light frost! The white blooms with yellow centers are the perfect contrast to other fall flowers in your mixed perennial bed. Deer and rabbit resistant.

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Aralia cordata 'Sun King'

Aralia cordata 'Sun King'

Golden Aralia

Brighten up your shade garden with Aralia 'Sun King'.  In mid-spring a wide clump will emerge with yellow to chartreuse, compound leaves that will provide color throughout the summer.   2' tall racemes of tiny white flowers shoot up in mid-summer followed by black fruit.  Give your garden a tropical accent with 'Sun King'.

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Artemisia x 'Powis Castle'

Artemisia x 'Powis Castle'

Wormwood

Upright clumps of feathery, fragrant silver-gray leaves. Evergreen foliage makes a nice hedge. Cut back to 15" to encourage new growth every year.

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Aruncus 'Fairy Hair'

Aruncus 'Fairy Hair'

Goat's Beard

A new, dwarf cultivar of Goat's Beard, 'Fairy Hair' is a beautiful addition to your woodland garden or perennial bed. Lacey, white triangular flower plumes stand erect above the delicate, green foliage. Native to North America, Aruncus prefer moist locations.

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Asclepias incarnata

Asclepias incarnata

Swamp Milkweed

Also called Red Milkweed, Asclepias incarnata is a favorite food source for many species of butterflies, including the Monarch. A native perennial that prefers moist soils, it is an adaptable and beautiful addition to any border garden.

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Asclepias incarnata Ice Ballet

Asclepias incarnata Ice Ballet

Swamp Milkweed

Swamp milkweed is favorite of butterflies and Asclepias incarnata ‘Ice Ballet’ is a long-blooming, bright white variety that performs well in the garden.

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Asclepias syriaca

Asclepias syriaca

Common milkweed

While it's the primary host plant for Monarch butterflies, other butterfly species visit the sweetly fragrant flowers of Asclepias syriaca as well. Plain old roadside milkweed, the fluff of the seedheads is a bit magical when caught by the breeze.

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Asclepias tuberosa

Asclepias tuberosa

Butterfly weed

Gorgeous in bloom, with intense orange flowers in mid to late summer, native Butterfly Weed is very drought tolerant and, of course, a great plant for bees and butterflies!

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Asclepias tuberosa Hello Yellow

Asclepias tuberosa Hello Yellow

Butterfly weed

Asclepias tuberosa ‘Hello Yellow’ is a yellow cultivar of our native orange butterfly weed which is long-blooming, long-lived and a favorite of hummingbirds, butterflies and other beneficial insects.

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Aster KICKIN™ 'Lavender'

Aster KICKIN™ 'Lavender'

Aster

KICKIN™ is a new series of perennial Asters that have a very bushy and compact shape. This plant is covered in semi-double yellow daisy-like flowers above finely textured foliage that is attractive to butterflies. Soft lavender flowers appear late summer through mid-fall providing some late season color in the landscape.

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Aster KICKIN™ 'Lilac Blue'

Aster KICKIN™ 'Lilac Blue'

Aster

KICKIN™ is a new series of perennial Asters that have a very bushy and compact shape. This plant is covered in semi-double daisy-like flowers above finely textured foliage. Lilac blue flowers appear late summer through mid-fall providing some late season color in the landscape.

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Aster laevis 'Bluebird'

Aster laevis 'Bluebird'

Smooth aster

Profuse, violet-blue flowers with golden-yellow centers top this upright, vase-shaped plant. A robust bloomer that seldom requires staking. Drought tolerant. The nectar of the Bluebird is loved by Monarch butterflies. The flowers begin to bloom in early fall and continue all season.

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Aster oblongifolius 'Raydon's Favorite'

Aster oblongifolius 'Raydon's Favorite'

Aromatic Aster

Low growing mounds of gray-green foliage are covered in masses of medium-blue flowers with yellow centers in late summer and into fall. Excellent cut flower, aromatic foliage and tolerant of a wide range of conditions.

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Aster tataricus 'Jindai'

Aster tataricus 'Jindai'

Tatarian Daisy

Aster tataricus ‘Jindai’'s large, dark green basal leaves give way to stout stems with flat-topped clusters of yellow centered sky blue flowers. No staking required. Shorter than the species and not as aggressive. Blooms last longer than other aster varities, sometimes until the first frost.

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Aster x dumosus 'Wood's Pink'

Aster x dumosus 'Wood's Pink'

Aster

Compact plants have clear pink flowers with bright yellow centers over dark green foliage. Plants bloom from late summer until frost. Very mildew and rust resistant.

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Asteromea mongolica

Asteromea mongolica

Japanese aster

A must-have perennial for the garden. It's extremely tough and easy to grow and it blooms for a long period of time. Double white flowers completely cover this plant from mid-summer to frost. A wonderful perennial to add late-season interest.

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