Mustard greens
Brassica juncea 'Japanese Giant Red'
Zones 2-
11
4
USDA Hardiness Zone 4
-30 to -20°F • Cold winter climates
Includes sub-zones: 4a, 4b | Ideal for: cold-hardy perennials, evergreens, conifers | 3680 total plants
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Nannyberry viburnum
Viburnum lentago
Zones 2-
8
Nantucket serviceberry
Amelanchier nantucketensis
Zones 3-
6
Narrow-leaf coneflower
Echinacea angustifolia
Zones 3-
8
Narrow-leaved cattail
Typha angustifolia
Zones 2-
11
Narrow-leaved hosta
Hosta lancifolia
Zones 3-
8
Nasturtium
Tropaeolum (group)
Zones 2-
11
Nemesia
Nemesia (group)
Zones 2-
11
Nepeta
Nepeta × faassenii
Zones 3-
8
Nepeta
Nepeta sibirica 'Souvenir d'André Chaudron'
Zones 3-
8
Nepeta
Nepeta racemosa 'Blue Wonder'
Zones 3-
8
Nepeta
Nepeta 'Six Hills Giant'
Zones 4-
7
Nepeta
Nepeta × faassenii 'Select Blue'
Zones 3-
8
Nepeta
Nepeta × faassenii 'Kit Cat'
Zones 3-
8
Nepeta
Nepeta × faassenii 'Purrsian Blue'
Zones 3-
8
Netted chain fern
Woodwardia areolata
Zones 3-
9
New England aster
Symphyotrichum novae-angliae 'Honeysong Pink'
Zones 4-
8
New England aster
Symphyotrichum novae-angliae 'Purple Pixie'
Zones 4-
8
New England aster
Symphyotrichum novae-angliae 'Andenken an Alma Pötschke'
Zones 4-
8
New England aster
Symphyotrichum novae-angliae 'Roter Stern'
Zones 4-
8
New England aster
Symphyotrichum novae-angliae
Zones 4-
8
New England aster
Symphyotrichum novae-angliae KICKIN LAVENDER
Zones 4-
8
New England aster
Symphyotrichum novae-angliae KICKIN PINK CHIFFON
Zones 4-
8
New Jersey tea
Ceanothus americanus
Zones 4-
8
New Zealand spinach
Tetragonia tetragonioides
Zones 2-
11
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Nikko fir
Abies homolepis
Zones 4-
6
Ninebark
Physocarpus opulifolius 'Nanus'
Zones 2-
8
Ninebark
Physocarpus opulifolius 'Diabolo'
Zones 3-
7
Ninebark
Physocarpus opulifolius 'Seward' SUMMER WINE
Zones 3-
8
Ninebark
Physocarpus opulifolius 'Mindia' COPPERTINA
Zones 3-
7
Ninebark
Physocarpus opulifolius 'Center Glow'
Zones 3-
7
Ninebark
Physocarpus opulifolius 'Dart's Gold'
Zones 3-
7
Ninebark
Physocarpus opulifolius 'Ruby Spice'
Zones 2-
8
Ninebark
Physocarpus opulifolius
Zones 2-
8
Ninebark
Physocarpus opulifolius 'Donna May'
Zones 3-
7
Ninebark
Physocarpus opulifolius 'Jefam' AMBER JUBILEE
Zones 2-
8
Ninebark
Physocarpus opulifolius 'Podaras 3' LEMON CANDY
Zones 2-
8
Nodding onion
Allium cernuum
Zones 4-
8
Nootka cypress
Xanthocyparis nootkatensis 'Aurea'
Zones 4-
7
Nootka cypress
Xanthocyparis nootkatensis 'Pendula'
Zones 4-
7
Nootka cypress
Xanthocyparis nootkatensis
Zones 4-
7
Nordic inkberry
Ilex glabra 'Chamzin' NORDIC
Zones 3-
9
Northern bedstraw
Galium boreale
Zones 4-
8
Northern dragonhead
Dracocephalum ruyschiana
Zones 3-
7
Northern lady fern
Athyrium filix-femina var. Angustum 'Lady in Red'
Zones 4-
8
Northern lady fern
Athyrium filix-femina var. Angustum
Zones 3-
7
Northern maidenhair fern
Adiantum pedatum
Zones 3-
8
Northern pin oak
Quercus ellipsoidalis
Zones 4-
7
Northern sea oats
Chasmanthium latifolium
Zones 3-
8
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Norway maple
Acer platanoides 'Crimson King'
Zones 3-
7
Norway maple
Acer platanoides 'Deborah'
Zones 3-
7
Norway maple
Acer platanoides 'Emerald Maple'
Zones 3-
7
Norway maple
Acer platanoides 'Superform'
Zones 3-
7
Norway spruce
Picea abies 'Acrocona'
Zones 3-
7
Norway spruce
Picea abies 'Gregoryana'
Zones 3-
7
Norway spruce
Picea abies 'Little Gem'
Zones 3-
7
Norway spruce
Picea abies 'Maxwellii'
Zones 2-
7
Norway spruce
Picea abies 'Nidiformis'
Zones 3-
7
Norway spruce
Picea abies 'Little Joe'
Zones 3-
8
Norway spruce
Picea abies 'Pendula'
Zones 3-
7
Norway spruce
Picea abies 'Pumila'
Zones 3-
7
Norway spruce
Picea abies 'Sherwood Compact'
Zones 3-
7
Norway spruce
Picea abies 'Weeping Blue'
Zones 3-
7
Norway spruce
Picea abies 'Formanek'
Zones 3-
7
Norway spruce
Picea abies 'Hillside Upright'
Zones 3-
7
Norway spruce
Picea abies
Zones 2-
7
Oak
Quercus × schuettei
Zones 4-
8
Oak
Quercus × warei 'Long' REGAL PRINCE
Zones 4-
9
Obedient plant
Physostegia virginiana 'Alba'
Zones 3-
9
Obedient plant
Physostegia virginiana 'Vivid'
Zones 3-
9
Obedient plant
Physostegia virginiana 'Miss Manners'
Zones 3-
9
Obedient plant
Physostegia virginiana 'Crystal Peak White'
Zones 3-
9
Obedient plant
Physostegia angustifolia
Zones 3-
9
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Obedient plant
Physostegia virginiana
Zones 3-
9
Obedient plant
Physostegia virginiana 'Pink Manners'
Zones 3-
9
Obedient plant
Physostegia virginiana 'Nicauca' AUTUMN CARNIVAL
Zones 3-
9
October daphne
Hylotelephium sieboldii
Zones 3-
9
Odessa bellflower
Campanula glomerata var. Dahurica 'Odessa'
Zones 3-
8
Ohio buckeye
Aesculus glabra
Zones 3-
7
Ohio horsemint
Blephilia ciliata
Zones 4-
8
Ohio spiderwort
Tradescantia ohiensis
Zones 4-
9
Okra
Abelmoschus esculentus 'Baby Bubba'
Zones 2-
10
Okra
Abelmoschus esculentus
Zones 2-
11
Old field goldenrod
Solidago nemoralis
Zones 3-
9
Orange coneflower
Rudbeckia fulgida
Zones 3-
9
Orange daylily
Hemerocallis fulva
Zones 3-
9
Orange stonecrop
Sedum kamtschaticum var. Floriferum 'Weihenstephaner Gold'
Zones 3-
8
Orchid
Galearis spectabilis
Zones 4-
7
Oregano
Origanum vulgare 'Aureum'
Zones 4-
8
Oregano
Origanum vulgare 'Aureum Crispum'
Zones 4-
8
Oregano
Origanum 'Hot and Spicy'
Zones 4-
8
Oregano
Origanum vulgare 'Jim Best'
Zones 4-
8
Oregano
Origanum vulgare
Zones 4-
8
Oregano
Origanum 'Drops of Jupiter'
Zones 4-
9
Orienpet lily
Lilium 'American Heritage'
Zones 4-
8
Orienpet lily
Lilium 'American Way'
Zones 4-
8
Orienpet lily
Lilium 'Touching'
Zones 4-
8
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Oriental lily
Lilium 'Black Beauty'
Zones 3-
8
Oriental poppy
Papaver orientale 'Patty's Plum'
Zones 3-
7
Oriental poppy
Papaver orientale 'Turkenlouis'
Zones 3-
7
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See All PlantsBest Plants for Zone 4
USDA Hardiness Zone 4 experiences winter minimum temperatures between -30 to -20°F. This collection includes 3680 plants specifically suited for Zone 4 conditions, including cold-hardy perennials, evergreens, conifers.
Understanding Your Hardiness Zone
The USDA hardiness zone is based on average annual minimum winter temperature. While it's an excellent starting point, also consider your local microclimate, soil conditions, rainfall patterns, and summer heat when selecting plants.