Strawberry foxglove
Digitalis × mertonensis
Zones 4-
8
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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Striped cream violet
Viola striata
Zones 4-
7
Striped squill
Puschkinia scilloides
Zones 4-
8
Stylophorum
Stylophorum lasiocarpum
Zones 4-
9
Sugar maple
Acer saccharum 'Goldspire'
Zones 4-
8
Sugar maple
Acer saccharum 'Newton Sentry'
Zones 4-
8
Sugar maple
Acer saccharum 'Green Mountain'
Zones 4-
8
Sugar maple
Acer saccharum 'Sweet Shadow'
Zones 4-
8
Sugar maple
Acer saccharum 'Bailsta' FALL FIESTA
Zones 3-
8
Sugar maple
Acer saccharum
Zones 3-
8
Sulphur flower
Eriogonum umbellatum
Zones 4-
8
Summer snowflake
Leucojum aestivum 'Gravetye Giant'
Zones 4-
8
Summer snowflake
Leucojum aestivum
Zones 4-
8
Summer squash
Cucurbita pepo
Zones 2-
11
Summersweet
Clethra alnifolia 'Sixteen Candles'
Zones 4-
9
Sundrops
Oenothera fruticosa 'Fyrverkeri'
Zones 4-
8
Sundrops
Oenothera fruticosa subsp. Glauca
Zones 3-
8
Sundrops
Oenothera fruticosa 'Summer Solstice'
Zones 3-
9
Sunflower
Helianthus annuus 'Sungold'
Zones 2-
11
Sunflower
Helianthus 'Capenoch Star'
Zones 4-
8
Sunflower
Helianthus occidentalis
Zones 4-
8
Sunflower
Helianthus divaricatus
Zones 3-
8
Sunflower
Helianthus SUNFINITY YELLOW DARK CENTER
Zones 2-
11
Sunflower
Helianthus 'Sunshine Daydream'
Zones 4-
8
Swamp aster
Symphyotrichum puniceum
Zones 2-
9
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Swamp azalea
Rhododendron viscosum
Zones 4-
9
Swamp dogwood
Cornus amomum subsp. Obliqua
Zones 4-
8
Swamp loosestrife
Decodon verticillatus
Zones 3-
9
Swamp milkweed
Asclepias incarnata 'Ice Ballet'
Zones 3-
9
Swamp milkweed
Asclepias incarnata
Zones 3-
6
Swamp milkweed
Asclepias incarnata 'Cinderella'
Zones 3-
8
Swamp rose
Rosa palustris
Zones 4-
9
Swamp white oak
Quercus bicolor
Zones 3-
8
Swan River daisy
Brachyscome (group)
Zones 2-
11
Sweet azalea
Rhododendron arborescens
Zones 4-
7
Sweet basil
Ocimum basilicum
Zones 2-
11
Sweet breath of spring
Lonicera fragrantissima
Zones 4-
8
Sweet briar rose
Rosa rubiginosa
Zones 4-
9
Sweet coneflower
Rudbeckia subtomentosa 'Henry Eilers'
Zones 4-
8
Sweet coneflower
Rudbeckia subtomentosa
Zones 4-
8
Sweet fennel
Foeniculum vulgare
Zones 4-
9
Sweet fern
Comptonia peregrina
Zones 2-
6
Sweet flag
Acorus calamus 'Variegatus'
Zones 4-
10
Sweet flag
Acorus calamus
Zones 4-
10
Sweet pea
Lathyrus odoratus
Zones 2-
11
Sweet pepperbush
Clethra alnifolia 'Hummingbird'
Zones 3-
9
Sweet pepperbush
Clethra alnifolia 'Pink Spire'
Zones 4-
8
Sweet pepperbush
Clethra alnifolia 'Rosea'
Zones 4-
8
Sweet pepperbush
Clethra alnifolia 'Ruby Spice'
Zones 4-
8
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Sweet pepperbush
Clethra alnifolia SHERRY SUE
Zones 4-
9
Sweet pepperbush
Clethra alnifolia 'Caleb' VANILLA SPICE
Zones 4-
8
Sweet pepperbush
Clethra alnifolia 'Crystalina'
Zones 4-
8
Sweet pepperbush
Clethra alnifolia
Zones 3-
9
Sweet pepperbush
Clethra alnifolia 'Batsto Blush'
Zones 3-
9
Sweet pepperbush
Clethra alnifolia 'Sotite' WHITE DOVE
Zones 3-
9
Sweet white violet
Viola blanda
Zones 2-
7
Sweet William
Dianthus barbatus 'Heart Attack'
Zones 3-
8
Sweet William
Dianthus 'Stagirond' RONDO
Zones 4-
8
Sweet William
Dianthus barbatus 'Sooty'
Zones 3-
9
Sweet William
Dianthus barbatus
Zones 3-
9
Sweetscented bedstraw
Galium odoratum
Zones 4-
8
Swiss chard
Beta vulgaris (Leaf Beet Group) 'Bright Lights'
Zones 2-
11
Swiss chard
Beta vulgaris (Leaf Beet Group)
Zones 2-
11
Swiss stone pine
Pinus cembra 'Chalet'
Zones 3-
7
Swiss stone pine
Pinus cembra 'Glauca'
Zones 4-
7
Swiss stone pine
Pinus cembra
Zones 4-
7
Switch grass
Panicum virgatum 'Prairie Sky'
Zones 4-
9
Switch grass
Panicum 'Huron Solstice'
Zones 4-
9
Switch grass
Panicum virgatum 'RR1' RUBY RIBBONS
Zones 4-
9
Switch grass
Panicum virgatum 'Dust Devil'
Zones 4-
9
Sycamore maple
Acer pseudoplatanus f. Variegatum 'Simon-Louis Freres'
Zones 4-
7
Sycamore maple
Acer pseudoplatanus
Zones 4-
7
Tall bearded iris
Iris 'Midnight Fragrance'
Zones 3-
10
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Tall bearded iris
Iris 'Beverly Sills'
Zones 3-
9
Tall bearded iris
Iris 'Champagne Elegance'
Zones 3-
9
Tall bearded iris
Iris 'City Lights'
Zones 3-
10
Tall bearded iris
Iris 'Eagles Flight'
Zones 3-
9
Tall bearded iris
Iris 'Immortality'
Zones 3-
9
Tall bearded iris
Iris 'America's Cup'
Zones 3-
10
Tall bearded iris
Iris 'Wild West Wind'
Zones 3-
10
Tall bearded iris
Iris 'Dutch Chocolate'
Zones 3-
9
Tall bearded iris
Iris 'Whispering Spirits'
Zones 3-
10
Tall bearded iris
Iris 'Florentina'
Zones 3-
9
Tall bearded iris
Iris 'Flavescens'
Zones 3-
9
Tall bearded reblooming iris
Iris 'October'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Northward Ho'
Zones 3-
10
Tall bearded reblooming iris
Iris 'St. Petersburg'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Autumn Tryst'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Buckwheat'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Clarence'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Happy New Year'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Winterland'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Jennifer Rebecca'
Zones 3-
10
Tall bearded reblooming iris
Iris 'Pagan Goddess'
Zones 3-
10
Tall bellflower
Campanula americana
Zones 4-
7
Tall fescue
Festuca arundinacea (mix)
Zones 3-
6
Tall fescue
Festuca arundinacea PROSCAPE WINNING COLORS
Zones 3-
6
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Tall fescue
Festuca arundinacea 'Dense Shade Mix'
Zones 3-
6
Tall fescue
Festuca arundinacea 'Jaguar 3'
Zones 3-
6
Tall fescue
Festuca arundinacea 'Kentucky 31'
Zones 3-
6
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View all 3680 plants for Zone 4 with advanced filtering options. Search by plant type, sun exposure, water needs, and more.
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.