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SUPER HARDY PLANTS
In this section we bring together our selection of super hardy plants for our cold climate gardeners in zones 1 through 4. Remember that if you mulch your plants with fallen leaves or straw, have good, reliable snow cover, plant in warmer microclimates in your garden, and cross your fingers, you might be able to grow plants rated as one zone warmer than your hardiness zone. Also, city gardens are often one zone warmer than the official hardiness zone for that region. Have fun pushing the limits!
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Achillea 'Coronation Gold' - Yarrow - Achillea 'Coronation Gold' is an award-winning yarrow with masses of flat-topped, golden yellow flowers. Achillea 'Coronation Gold' - Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea 'Coronation Gold' is an award-winning yarrow with masses of flat-topped, golden yellow flowers.

Price: $19.99
Achillea millefolium 'Apricot Delight' - Yarrow - Achillea 'Apricot Delight' has large, flat-topped flower clusters in various shades of pink atop fern-like foliage. Achillea millefolium 'Apricot Delight' - Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea 'Apricot Delight' has large, flat-topped flower clusters in various shades of pink atop fern-like foliage.

Price: $16.99
Achillea millefolium 'New Vintage Rose' - Yarrow - Achillea millefolium 'New Vintage Rose' has large, flat-topped flower clusters of rose pink with white eyes. Achillea millefolium 'New Vintage Rose' - Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea millefolium 'New Vintage Rose' has large, flat-topped flower clusters of rose pink with white eyes.

Price: $16.99
Achillea millefolium 'New Vintage White' - Yarrow - Achillea millefolium 'New Vintage White' has large, flat-topped flower clusters of pure white eyes flowers. Achillea millefolium 'New Vintage White' - Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea millefolium 'New Vintage White' has large, flat-topped flower clusters of pure white eyes flowers.

Price: $16.99
Achillea millefolium 'Terracotta' - Yarrow - Achillea 'Terracotta' is a distinctive yarrow offering shades of yellow, orange, and terra cotta. Achillea millefolium 'Terracotta' - Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea 'Terracotta' is a distinctive yarrow offering shades of yellow, orange, and terra cotta.

Price: $16.99
Achillea millefolium - Common Yarrow - Achillea millefolium, the common yarrow, is an important nectar source and host plant for a diversity of insects. Achillea millefolium - Common Yarrow - Asteraceae (The Aster/Daisy Family)

Achillea millefolium, the common yarrow, is an important nectar source and host plant for a diversity of insects.

Price: $7.99
Achillea ptarmica 'Peter Cottontail' - Sneezewort - Achillea ptarmica 'Peter Cottontail' is a unique yarrow with white, button-like flowers held in low, cloud-like mounds. Achillea ptarmica 'Peter Cottontail' - Sneezewort - Asteraceae (The Aster/Daisy Family)

Achillea ptarmica 'Peter Cottontail' is a unique yarrow with white, button-like flowers held in low, cloud-like mounds.

Price: $16.99
Actaea japonica 'Silver Dance' - Bugbane - Actaea japonica 'Silver Dance' has wands of creamy-white bottle brush flowers and silver foliage maturing to green. Actaea japonica 'Silver Dance' - Bugbane - Ranunculaceae (The Buttercup Family)

Actaea japonica 'Silver Dance' has wands of creamy-white bottle brush flowers and silver foliage maturing to green.

Price: $26.99
Actaea matsumurae 'White Pearl' - Bugbane - Actaea (Cimicifuga) 'White Pearl' has dissected green foliage and exceptionally long spires of fragrant white flowers in late summer. Actaea matsumurae 'White Pearl' - Bugbane - Ranunculaceae (The Buttercup Family)

Actaea (Cimicifuga) 'White Pearl' has dissected green foliage and exceptionally long spires of fragrant white flowers in late summer.

Price: $21.99
Actaea pachypoda 'Misty Blue' - White Baneberry - Actaea pachypoda 'Misty Blue' is a white baneberry with bluish foliage and white flowers followed by white fruit with a black dot. Actaea pachypoda 'Misty Blue' - White Baneberry - Ranunculaceae (The Buttercup Family)

Actaea pachypoda 'Misty Blue' is a white baneberry with bluish foliage and white flowers followed by white fruit with a black dot.

Price: $31.99
Actaea simplex 'Black Negligee' - Bugbane - Actaea (syn. Cimicifuga) 'Black Negligee' has lacy black foliage and wands of fragrant, white flowers in late summer. Actaea simplex 'Black Negligee' - Bugbane - Ranunculaceae (The Buttercup Family)

Actaea (syn. Cimicifuga) 'Black Negligee' has lacy black foliage and wands of fragrant, white flowers in late summer.

Price: $21.99
Adenophora confusa 'Gaudi Violet' - Ladybells - Adenophora 'Gaudi Violet' is a beautiful bellflower relative with elegant spikes of light violet bell-shaped flowers. Adenophora confusa 'Gaudi Violet' - Ladybells - Campanulaceae (The Bellflower Family)

Adenophora 'Gaudi Violet' is a beautiful bellflower relative with elegant spikes of light violet bell-shaped flowers.

Price: $23.99
Adiantum pedatum - Northern Maidenhair Fern - Adiantum pedatum, the northern Maidenhair fern, is one of the most beautiful of all ferns with distinctive palmate fronds. Adiantum pedatum - Northern Maidenhair Fern - Pteridaceae (The Maidenhair Fern Family)

Adiantum pedatum, the northern Maidenhair fern, is one of the most beautiful of all ferns with distinctive palmate fronds.

Price: $8.99
Agastache foeniculum - Anise Hyssop - Agastache foeniculum is a long-blooming perennial great for summer colour and bees and butterflies. Agastache foeniculum - Anise Hyssop - Lamiaceae (The Mint Family)

Agastache foeniculum is a long-blooming perennial great for summer colour and bees and butterflies.

Price: $18.99
Ajuga Feathered Friends 'Cordial Canary' - Bugleweed - Ajuga Feathered Friends 'Cordial Canary' is a semi-evergreen bugleweed with bright gold foliage and cobalt-blue flowers. Ajuga Feathered Friends 'Cordial Canary' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Cordial Canary' is a semi-evergreen bugleweed with bright gold foliage and cobalt-blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Fancy Finch' - Bugleweed - Ajuga Feathered Friends 'Fancy Finch' is a semi-evergreen bugleweed offering colours of gold, bronze and green with blue flowers. Ajuga Feathered Friends 'Fancy Finch' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Fancy Finch' is a semi-evergreen bugleweed offering colours of gold, bronze and green with blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Fierce Falcon' - Bugleweed - Ajuga Feathered Friends 'Fierce Falcon' is a semi-evergreen bugleweed with glossy, purple to black foliage and cobalt-blue flowers. Ajuga Feathered Friends 'Fierce Falcon' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Fierce Falcon' is a semi-evergreen bugleweed with glossy, purple to black foliage and cobalt-blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Noble Nightingale' - Bugleweed - Ajuga Feathered Friends 'Noble Nightingale' is a semi-evergreen bugleweed with metallic black leaves and cobalt with blue flowers. Ajuga Feathered Friends 'Noble Nightingale' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Noble Nightingale' is a semi-evergreen bugleweed with metallic black leaves and cobalt with blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Parrot Paradise' - Bugleweed - Ajuga Feathered Friends 'Parrot Paradise' is a semi-evergreen bugleweed with yellow, orange, and red leaves with blue flowers. Ajuga Feathered Friends 'Parrot Paradise' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Parrot Paradise' is a semi-evergreen bugleweed with yellow, orange, and red leaves with blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Petite Parakeet' - Bugleweed - Ajuga Feathered Friends 'Petite Parakeet' offers shades of yellow, red and green leaves with cobalt blue flowers. Ajuga Feathered Friends 'Petite Parakeet' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Petite Parakeet' offers shades of yellow, red and green leaves with cobalt blue flowers.

Price: $13.99
Ajuga Feathered Friends 'Tropical Toucan' - Bugleweed - Ajuga Feathered Friends 'Tropical Toucan' is a semi-evergreen bugleweed with golden yellow leaves with blue flowers. Ajuga Feathered Friends 'Tropical Toucan' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga Feathered Friends 'Tropical Toucan' is a semi-evergreen bugleweed with golden yellow leaves with blue flowers.

Price: $13.99
Ajuga reptans 'Chocolate Chip' - Bugleweed - Ajuga 'Valfredda' Chocolate Chip has small, narrow, elongated leaves that are flushed with burgundy when young and in more sun. Ajuga reptans 'Chocolate Chip' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga 'Valfredda' Chocolate Chip has small, narrow, elongated leaves that are flushed with burgundy when young and in more sun.

Price: $7.99
Ajuga tenorii 'Princess Nadia' - Bugleweed - Ajuga tenorii 'Princess Nadia' has gorgeous variegated leaves in shades of grey-green, cream, and pink topped with reblooming purple-blue flower spikes. Ajuga tenorii 'Princess Nadia' - Bugleweed - Lamiaceae (The Mint Family)

Ajuga tenorii 'Princess Nadia' has gorgeous variegated leaves in shades of grey-green, cream, and pink topped with reblooming purple-blue flower spikes.

Price: $11.99
(Out of Stock)
Alcea rosea Spotlight 'Blacknight' - Hollyhock - Alcea rosea Spotlight 'Blacknight' is a hollyhock with large, old-fashioned, single, purple-black flowers with small white eyes. Alcea rosea Spotlight 'Blacknight' - Hollyhock - Malvaceae (The Mallow Family)

Alcea rosea Spotlight 'Blacknight' is a hollyhock with large, old-fashioned, single, purple-black flowers with small white eyes.

Price: $16.99
Alcea rosea Spotlight 'Mars Magic' - Hollyhock - Alcea rosea Spotlight 'Mars Magic' is a hollyhock with large, old-fashioned, single, red flowers with bright yellow eyes. Alcea rosea Spotlight 'Mars Magic' - Hollyhock - Malvaceae (The Mallow Family)

Alcea rosea Spotlight 'Mars Magic' is a hollyhock with large, old-fashioned, single, red flowers with bright yellow eyes.

Price: $16.99
Alcea rosea Spotlight 'Polarstar' - Hollyhock - Alcea rosea Spotlight 'Polarstar' is a hollyhock with large, old-fashioned, single white flowers with bright yellow eyes. Alcea rosea Spotlight 'Polarstar' - Hollyhock - Malvaceae (The Mallow Family)

Alcea rosea Spotlight 'Polarstar' is a hollyhock with large, old-fashioned, single white flowers with bright yellow eyes.

Price: $16.99
Alcea rosea Spotlight 'Radiant Rose' - Hollyhock - Alcea rosea Spotlight 'Radiant Rose' is a hollyhock with large, old-fashioned, single rosy-pink flowers with bright yellow eyes. Alcea rosea Spotlight 'Radiant Rose' - Hollyhock - Malvaceae (The Mallow Family)

Alcea rosea Spotlight 'Radiant Rose' is a hollyhock with large, old-fashioned, single rosy-pink flowers with bright yellow eyes.

Price: $16.99
Allium 'Medusa's Hair' - Ornamental Onion - Allium 'Medusa's Hair' is an ornamental onion with snake-like, green foliage and purple flower spheres. Allium 'Medusa's Hair' - Ornamental Onion - Amaryllidaceae (The Amaryllis Family)

Allium 'Medusa's Hair' is an ornamental onion with snake-like, green foliage and purple flower spheres.

Price: $21.99
Allium 'Serendipity' - Ornamental Onion - Allium 'Serendipity' forms two inch spheres on tall blue-green stems like rose-purple balloons floating in the summer garden. Allium 'Serendipity' - Ornamental Onion - Amaryllidaceae (The Amaryllis Family)

Allium 'Serendipity' forms two inch spheres on tall blue-green stems like rose-purple balloons floating in the summer garden.

Price: $21.99
Amsonia 'Blue Ice' - Blue Star - Two tones of dark and light blue make the flowers of Amsonia 'Blue Ice' the best in the genus. Amsonia 'Blue Ice' - Blue Star - Apocynaceae (The Dogbane Family)

Two tones of dark and light blue make the flowers of Amsonia 'Blue Ice' the best in the genus.

Price: $23.99
   
 
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