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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.
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Achillea ageratifolia - Greek Yarrow - Achillea ageratifolia is an unusual yarrow forming aromatic, silver-green, mounds covered in pure white daisies with light yellow centres. Achillea ageratifolia - Greek Yarrow - Asteraceae (The Aster Family)

Achillea ageratifolia is an unusual yarrow forming aromatic, silver-green, mounds covered in pure white daisies with light yellow centres.

Price: $8.99
Achillea millefolium Desert Eve Red Improved ('Desred') - Yarrow - Achillea Desert Eve Red has brick-red flowers above fragrant, fern-like foliage. Achillea millefolium Desert Eve Red Improved ('Desred') - Yarrow - Asteraceae (The Aster Family)

Achillea Desert Eve Red has brick-red flowers above fragrant, fern-like foliage.

Price: $12.99
Achillea millefolium Desert Eve Terracotta - Yarrow - Achillea Desert Eve Terracotta has flowers in shades of yellow, orange and rusty orange. Achillea millefolium Desert Eve Terracotta - Yarrow - Asteraceae (The Aster Family)

Achillea Desert Eve Terracotta has flowers in shades of yellow, orange and rusty orange.

Price: $12.99
Aconitum 'Blue Lagoon' - Monkshood - Aconitum 'Blue Lagoon' is a dwarf monkshood with bright blue flowers. Aconitum 'Blue Lagoon' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Blue Lagoon' is a dwarf monkshood with bright blue flowers.

Price: $16.99
Aconitum 'Spark's Variety' - Monkshood - Aconitum 'Spark's Variety' has four foot tall spikes of hooded, deep violet-blue monkshood flowers. Aconitum 'Spark's Variety' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Spark's Variety' has four foot tall spikes of hooded, deep violet-blue monkshood flowers.

Price: $11.99
Aconitum arendsii 'Cloudy' - Monkshood - Aconitum 'Cloudy' is a gorgeous bicolour monkshood with blue and white flowers. Aconitum arendsii 'Cloudy' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Cloudy' is a gorgeous bicolour monkshood with blue and white flowers.

Price: $12.99
Aconitum carmichaelii 'Arendsii' - Monkshood - The tall stems and purple-blue flowers of the monkshood Aconitum 'Arendsii' offer a substitute for Delphinium for shadier conditions. Aconitum carmichaelii 'Arendsii' - Monkshood - Ranunculaceae (The Buttercup Family)

The tall stems and purple-blue flowers of the monkshood Aconitum 'Arendsii' offer a substitute for Delphinium for shadier conditions.

Price: $11.99
Aconitum carmichaelli 'Royal Flush' - Monkshood - Aconitum 'Royal Flush' has spires of purple-blue monkshood flowers preceded by luscious chocolate-red new growth. Aconitum carmichaelli 'Royal Flush' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Royal Flush' has spires of purple-blue monkshood flowers preceded by luscious chocolate-red new growth.

Price: $17.99
Aconitum fischeri - Fischer's Monkshood - Aconitum fischeri is a shorter monkshood to two feet with purple-blue flowers. Aconitum fischeri - Fischer's Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum fischeri  is a shorter monkshood to two feet with purple-blue flowers.

Price: $11.99
Aconitum napellus 'Album' - Monkshood - Aconitum 'Album' has deeply cut ferny dark green leaves with bold white spikes of hooded monkshood flowers. Elegant. Aconitum napellus 'Album' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Album' has deeply cut ferny dark green leaves with bold white spikes of hooded monkshood flowers. Elegant.

Price: $12.99
Aconitum napellus 'Rubellum' - Monkshood - Aconitum 'Rubellum' is a distinctly different monkshood with pretty pink flower spikes. Aconitum napellus 'Rubellum' - Monkshood - Ranunculaceae (The Buttercup Family)

Aconitum 'Rubellum' is a distinctly different monkshood with pretty pink flower spikes.

Price: $14.99
Aconitum x cammarum 'Stainless Steel' - Monkshood - 'Stainless Steel' is a unique steely blue Aconitum that makes a great spike for sun or shadier conditions. Aconitum x cammarum 'Stainless Steel' - Monkshood - Ranunculaceae (The Buttercup Family)

'Stainless Steel' is a unique steely blue Aconitum that makes a great spike for sun or shadier conditions.

Price: $16.99
Actaea (Cimicifuga) matsumurae 'White Pearl' - Bugbane - Actaea (Cimicifuga) 'White Pearl' has dissected green foliage and exceptionally long spires of fragrant white flowers in late summer. Actaea (Cimicifuga) 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: $14.99
Actaea pachypoda - White Baneberry - Actaea pachypoda is a lovely and delicate woodlander and a perfect choice to create a quiet and relaxing vignette in the shade border. Actaea pachypoda - White Baneberry - Ranunculaceae (The Buttercup Family)

Actaea pachypoda is a lovely and delicate woodlander and a perfect choice to create a quiet and relaxing vignette in the shade border.

Price: $14.99
Actinidia arguta 'Hardy Male' - Male Hardy Kiwi - This male Actinidia arguta hardy kiwi can pollinate up to 8 female plants. He's a real stud. Actinidia arguta 'Hardy Male' - Male Hardy Kiwi - Actinidiaceae (The Actinidia Family)

This male Actinidia arguta hardy kiwi can pollinate up to 8 female plants. He's a real stud.

Price: $24.99
Actinidia arguta x kolomikta 'Flowercloud Male' - Male Hardy Kiwi - Actinidia 'Flowercloud Male' is an early blooming male cultivar that produces a profusion of flowers. It is an excellent pollinator to increase fruit production on 'Issai'. Actinidia arguta x kolomikta 'Flowercloud Male' - Male Hardy Kiwi - Actinidiaceae (The Actinidia Family)

Actinidia  'Flowercloud Male' is an early blooming male cultivar that produces a profusion of flowers. It is an excellent pollinator to increase fruit production on 'Issai'.

Price: $24.99
Actinidia kolomikta 'Frost' - Female Arctic Kiwi - Actinidia kolomikta 'Frost' produces good, early crops of medium to large, bright green, very sweet fruit high in vitamin C. Actinidia kolomikta 'Frost' - Female Arctic Kiwi - Actinidiaceae (The Actinidia Family)

Actinidia kolomikta 'Frost' produces good, early crops of medium to large, bright green, very sweet fruit high in vitamin C.

Price: $24.99
Actinidia kolomikta 'Hero' - Female Arctic Kiwi - Actinidia kolomikta 'Hero' was discovered in the Russian Far East and produces abundant crops of large, light green, very sweet fruit. Actinidia kolomikta 'Hero' - Female Arctic Kiwi - Actinidiaceae (The Actinidia Family)

Actinidia kolomikta 'Hero' was discovered in the Russian Far East and produces abundant crops of large, light green, very sweet fruit.

Price: $24.99
Actinidia kolomikta 'Pasha' - Male Arctic Kiwi - Actinidia 'Pasha' is a colourful ornamental kiwi that will make an intriguingly lush garden backdrop. The spring leaves emerge purple and green then develop dramatic splashes of soft pink and cream. Actinidia kolomikta 'Pasha' - Male Arctic Kiwi - Actinidiaceae (The Actinidia Family)

Actinidia 'Pasha' is a colourful ornamental kiwi that will make an intriguingly lush garden backdrop. The spring leaves emerge purple and green then develop dramatic splashes of soft pink and cream.

Price: $24.99
Actinidia kolomikta 'September Sun' - Female Arctic Kiwi - Actinidia 'September Sun' has spring leaves emerging purple and green then developing dramatic splashes of soft pink and cream. Actinidia kolomikta 'September Sun' - Female Arctic Kiwi - Actinidiaceae (The Actinidia Family)

Actinidia 'September Sun' has spring leaves emerging purple and green then developing dramatic splashes of soft pink and cream.

Price: $24.99
Actinidia polygama 'Hot Pepper' - Female Silver Vine (Kiwi) - Actinidia polygama 'Hot Pepper' has orange-yellow fruit with a sweet and spicy flavour with green and silver foliage. Actinidia polygama 'Hot Pepper' - Female Silver Vine (Kiwi) - Actinidiaceae (The Actinidia Family)

Actinidia polygama 'Hot Pepper' has orange-yellow fruit with a sweet and spicy flavour with green and silver foliage.

Price: $24.99
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: $12.99
Allium schoenoprasum 'Curly Mauve' - Garden Chives - Allium schoenoprasum 'Curly Mauve' offers a more ornamental take on the garden chive with curly, blue-grey leaves and silver-pink flowers. Allium schoenoprasum 'Curly Mauve' - Garden Chives - Amaryllidaceae (The Amaryllis Family)

Allium schoenoprasum 'Curly Mauve' offers a more ornamental take on the garden chive with curly, blue-grey leaves and silver-pink flowers.

Price: $17.99
Allium senescens 'Blue Eddy' - Spiral Onion - Allium 'Blue Eddy' has twisty and twirly bluish foliage topped in late summer with lavender pink spheres. A great ornamental onion for the sun garden. Allium senescens 'Blue Eddy' - Spiral Onion - 168

Allium 'Blue Eddy' has twisty and twirly bluish foliage topped in late summer with lavender pink spheres. A great ornamental onion for the sun garden.

Price: $14.99
Allium senescens 'Pink Planet' - Spiral Onion - Allium 'Pink Planet' has bluish-green, twisting foliage and dense balls of silver-pink flowers in late summer. Allium senescens 'Pink Planet' - Spiral Onion - 168

Allium 'Pink Planet' has bluish-green, twisting foliage and dense balls of silver-pink flowers in late summer.

Price: $17.99
Allium tanguticum 'Summer Beauty' - Ornamental Onion - Allium tanguticum 'Summer Beauty' blooms in mid to late summer with numerous spheres of lavender-pink flowers popular with pollinators. Allium tanguticum 'Summer Beauty' - Ornamental Onion - 168

Allium tanguticum 'Summer Beauty' blooms in mid to late summer with numerous spheres of lavender-pink flowers popular with pollinators.

Price: $14.99
Amianthium muscitoxicum - Fly Poison, Crow Poison - Amianthium muscitoxicum is a rare eastern North American native with spikes of pure white, glistening, star-like flowers that turn green and bronze. Amianthium muscitoxicum - Fly Poison, Crow Poison - Melianthaceae (The Honeybush Family)

Amianthium muscitoxicum is a rare eastern North American native with spikes of pure white, glistening, star-like flowers that turn green and bronze.

Price: $19.99
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: $14.99
Anemone x hybrida 'Crispa' - Japanese Anemone - Anemone 'Crispa' has super ruffled and crinkled mounds of foliage topped with perfect pink Japanese anemone flowers. Anemone x hybrida 'Crispa' - Japanese Anemone - Ranunculaceae (The Buttercup Family)

Anemone 'Crispa' has super ruffled and crinkled mounds of foliage topped with perfect pink Japanese anemone flowers.

Price: $14.99
Anemonella thalictroides 'Kikuzaki White' - Rue Anemone - Anemonella 'Kikuzaki White' has exquisite, pure white, double flowers set off by delicate yellow stamens. Anemonella thalictroides 'Kikuzaki White' - Rue Anemone - Ranunculaceae (The Buttercup Family)

Anemonella 'Kikuzaki White' has exquisite, pure white, double flowers set off by delicate yellow stamens.

Price: $39.99
   
 
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