Plants for USDA hardiness zone 3

Aconite (Aconitum napellus)

Adonis amurensis (Adonis amurensis)

Adria Bellflower (Campanula portenschlagiana)

African Marigold (Tagetes erecta)

Alchemilla alpina (Alchemilla alpina)

Alder (Alnus glutinosa)

Alleghany Blackberry (Rubus allegheniensis)

Allium cepa (Allium cepa)

Alnus incana (Alnus incana)

Alnus maritima (Alnus maritima)

Alnus serrulata (Alnus serrulata)

Alpine Currant (Ribes alpinum)

Alpine Forget-Me-Not (Myosotis alpestris)

Althaea officinalis (Althaea officinalis)

Amaranthus cruentus (Amaranthus cruentus)

Amaranthus hypochondriacus (Amaranthus hypochondriacus)

Amaranthus tricolor (Amaranthus tricolor)

American Arbor-Vitae (Thuja occidentalis)

American Basswood (Tilia americana)

American Blackcurrant (Ribes americanum)

American Blue Vervain (Verbena hastata)

American Dewberry (Rubus canadensis)

American Elm (Ulmus americana)

American Honeysuckle (Lonicera canadensis)

American Liquorice (Glycyrrhiza lepidota)

American Liverleaf (Hepatica acutiloba)

American Liverleaf (Hepatica americana)

American Plum (Prunus americana)

American Red Raspberry (Rubus strigosus)

American hornbeam (Carpinus caroliniana)

Amur Cork Tree (Phellodendron amurense)

Amur Maple (Acer ginnala)

Anchusa (Anchusa azurea)

Anethum graveolens (Anethum graveolens)

Annual Fleabane (Erigeron annuus)

Apple (Malus domestica)

Apple Serviceberry (Amelanchier lamarckii)

Aquilegia coerulea (Aquilegia coerulea)

Aquilegia flabellata (Aquilegia flabellata)

Aquilegia formosa (Aquilegia formosa)

Arctic Bramble (Rubus arcticus)

Arrow Wood (Viburnum dentatum)

Artemisia scoparia (Artemisia scoparia)

Asparagus (Asparagus officinalis)

Aspen Poplar (Populus tremula)

Austrian Pine (Pinus nigra)

Autumn olive (Elaeagnus umbellata)

Autumn olive (Elaeagnus parvifolia)

Azure bluet or Quaker ladies (Houstonia caerulea)

Balmony (Chelone glabra)

Balsam Fir (Abies balsamea)

Baltic Rush (Juncus balticus)

Barberry (Berberis vulgaris)

Beach Aster (Erigeron glaucus)

Beach Pea (Lathyrus japonicus)

Beach Pine (Pinus contorta)

Beach Plum (Prunus maritima)

Beach Wormwood (Artemisia stelleriana)

Beak Willow (Salix bebbiana)

Beaumont's Root (Veronicastrum virginicum)

Bermuda Blue-Eyed Grass (Sisyrinchium angustifolium)

Bigleaf Aster (Aster macrophyllus)

Bilberry (Vaccinium myrtillus)

Bird's Foot Trefoil (Lotus corniculatus)

Black Ash (Fraxinus nigra)

Black Hellebore (Helleborus niger)

Black Huckleberry (Vaccinium ovalifolium)

Black Poplar (Populus nigra)

Black raspberry (Rubus occidentalis)

Bleeding Heart (Dicentra spectabilis)

Blue false indigo (Baptisia australis)

Bluebeard (Clintonia borealis)

Bog Heather (Erica tetralix)

Bog Myrtle (Myrica gale)

Box Elder (Acer negundo)

Brandywine Tomato (Solanum lycopersicum (Brandywine))

Bristle-Cone Pine (Pinus aristata)

Bristleleaf sedge (Carex eburnea)

Bristly Sarsaparilla (Aralia hispida)

Broccoli (Brassica oleracea italica)

Browntop Bent Grass (Agrostis capillaris)

Buffalo Berry (Shepherdia argentea)

Buffaloberry (Shepherdia argentea)

Bugle (Ajuga reptans)

Burr Oak (Quercus macrocarpa)

Bush Honeysuckle (Diervilla lonicera)

Butterfly Mariposa Lily (Calochortus venustus)

Butterfly Weed (Asclepias tuberosa)

Butternut - White Walnut (Juglans cinerea)

Butterwort (Pinguicula vulgaris)

Calochortus barbatus (Calochortus barbatus)

Canada Beadruby (Maianthemum canadense)

Canada Violet (Viola canadensis)

Canadian Aspen (Populus grandidentata)

Canadian Wild Rye (Elymus canadensis)

Cardinal Flower (Lobelia cardinalis)

Carolina vetch (Vicia caroliniana)

Carrot (Daucus carota sativus)

Carum carvi (Carum carvi)

Catmint (Nepeta cataria)

Caucasian spinach (Hablitzia tamnoides)

Checkerberry (Gaultheria procumbens)

Cheddar Pink (Dianthus gratianopolitanus)

Cherry Birch (Betula lenta)

Chinese Apple (Malus prunifolia)

Chinese Crab (Malus baccata)

Chives (Allium schoenoprasum)

Chokeberry (Aronia melanocarpa)

Cichorium intybus (Cichorium intybus)

Climbing Bittersweet (Celastrus scandens)

Clintonia udensis (Clintonia udensis)

Cloudberry (Rubus chamaemorus)

Colorado Fir (Abies concolor)

Columbine (Aquilegia vulgaris)

Comfrey (Symphytum officinale)

Common Buckthorn (Rhamnus cathartica)

Common Day Lily (Hemerocallis fulva)

Common Hackberry (Celtis occidentalis)

Common Lousewort (Pedicularis canadensis)

Common Milkweed (Asclepias syriaca)

Common Mugwort (Artemisia vulgaris)

Common Plantain (Plantago major)

Common Spatterdock (Nuphar advena)

Common Speedwell (Veronica officinalis)

Common bean (Phaseolus vulgaris)

Common haircap (Polytrichum commune)

Cone Flower (Rudbeckia laciniata)

Coptis trifolia (Coptis trifolia)

Coriandrum sativum (Coriandrum sativum)

Cornish Bellflower (Campanula alliariifolia)

Cottonwood (Populus fremontii)

Cowberry (Vaccinium vitis-idaea)

Crabapple (Malus yunnanensis)

Creeping Bellflower (Campanula rapunculoides)

Creeping Buttercup (Ranunculus repens)

Creeping Dogwood (Cornus canadensis)

Crowberry (Empetrum nigrum)

Cucumber Tree (Magnolia acuminata)

Cucurbita argyrosperma (Cucurbita argyrosperma)

Cussick's camas (Camassia cusickii)

Cutleaf Waterparsnip (Berula erecta)

Deer Grass (Rhexia virginica)

Devil's Bite (Liatris scariosa)

Dog Rose (Rosa canina)

Dog's-Tooth Violet (Erythronium dens-canis)

Dogfennel (Eupatorium capillifolium)

Douglas Fir (Pseudotsuga menziesii)

Dropwort (Filipendula vulgaris)

Dutch Rush (Equisetum hyemale)

Dwarf American Cherry (Prunus pumila)

Dwarf Mountain Pine (Pinus mugo)

Dwarf bleeding heart (Dicentra eximia)

Dwarf scouring rush (Equisetum scirpoides)

Eastern Cottonwood (Populus deltoides)

Echinacea (Echinacea angustifolia)

Echinacea (Echinacea purpurea)

Evergreen Huckleberry (Vaccinium ovatum)

False sunflower (Heliopsis helianthoides)

Field Horsetail (Equisetum arvense)

Flowering raspberry (Rubus parviflorus)

French Marigold (Tagetes patula)

Fringed Wormwood (Artemisia frigida)

Garlic (Allium sativum)

Gayfeather, dense blazing star (Liatris spicata)

Gentian (Gentiana acaulis)

Germander Speedwell (Veronica chamaedrys)

Giant Ragweed (Ambrosia trifida)

Giant red mustard (Brassica juncea)

Ginkgo (Ginkgo biloba)

Globe Thistle (Echinops ritro)

Globeflower (Trollius europaeus)

Goat's Beard (Aruncus dioicus)

Gold Birch (Betula ermanii)

Golden Alexanders (Zizia aurea)

Golden Garlic (Allium moly)

Golden Groundsel - Life Root (Packera aurea)

Golden currant (Ribes aureum)

Goldenseal (Hydrastis canadensis)

Goosegrass (Galium aparine)

Gooseneck Loosestrife (Lysimachia clethroides)

Great Burdock (Arctium lappa)

Great Saint John's Wort (Hypericum ascyron)

Great camas (Camassia leichtlinii)

Green Gentian (Frasera speciosa)

Green Osier (Cornus alternifolia)

Green Purslane (Portulaca oleracea)

Green Rabbitbrush (Chrysothamnus viscidiflorus)

Grey Birch (Betula populifolia)

Ground Ivy (Glechoma hederacea)

Ground Nut (Apios americana)

Ground virginsbower (Clematis recta)

Grouseberry (Vaccinium scoparium)

Guelder Rose (Viburnum opulus)

Harbin Pear (Pyrus ussuriensis)

Hardhack (Spiraea tomentosa)

Harebell (Campanula persicifolia)

Haskap (Lonicera caerulea)

Hay-scented fern (Dennstaedtia punctilobula)

Hedge Bedstraw (Galium mollugo)

Highbush - Cranberry (Viburnum trilobum)

Hobbleberry (Viburnum lantanoides)

Honey locust (Gleditsia triacanthos)

Hungarian Lilac (Syringa josikaea)

Hyacinth (Hyacinthus orientalis)

Hyssop (Hyssopus officinalis)

Indian Poke (Veratrum viride)

Inkberry (Ilex glabra)

Ironwood (Ostrya virginiana)

Italian Grape Hyacinth (Muscari botryoides)

Jack Pine (Pinus banksiana)

Japanese Aconite (Aconitum carmichaelii)

Japanese Red Pine (Pinus densiflora)

Joe Pye Weed (Eupatorium maculatum)

Kenilworth Ivy (Cymbalaria muralis)

Kentucky Blue Grass (Poa pratensis)

Kentucky Coffee Tree (Gymnocladus dioicus)

Korean Barberry (Berberis koreana)

Labrador Violet (Viola labradorica)

Lady Fern (Athyrium filix-femina)

Lady's Bedstraw (Galium verum)

Lady's-mantle (Alchemilla mollis)

Larch (Larix decidua)

Large Beard Tongue (Penstemon grandiflorus)

Large Campanula (Campanula latifolia)

Large Yellow Foxglove (Digitalis grandiflora)

Large-Flower Evening Primrose (Oenothera glazioviana)

Lead Plant (Amorpha canescens)

Leafy Spurge Green spurge (Euphorbia esula)

Lemon Marigold (Tagetes tenuifolia)

Lemon Sumach (Rhus aromatica)

Ligularia sibirica (Ligularia sibirica)

Lilac (Syringa vulgaris)

Lilium cernuum (Lilium cernuum)

Lily Of The Valley (Convallaria majalis)

Lithospermum incisum (Lithospermum incisum)

Low Sweet Blueberry (Vaccinium angustifolium)

Male Fern (Dryopteris filix-mas)

Manchurian apricot (Prunus armeniaca mandschurica)

Maple (Acer pectinatum)

Marginal Woodfern (Dryopteris marginalis)