Sugar maple
Acer saccharum
Zones 3-
8
6
USDA Hardiness Zone 6
-10 to 0°F • Moderate winter climates
Includes sub-zones: 6a, 6b | Ideal for: perennials, shrubs, ornamental trees | 5960 total plants
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Sugarberry
Celtis laevigata
Zones 6-
9
Sulphur flower
Eriogonum umbellatum
Zones 4-
8
Summer grape
Vitis aestivalis 'Norton'
Zones 5-
7
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
Swamp azalea
Rhododendron viscosum
Zones 4-
9
Swamp chestnut oak
Quercus michauxii
Zones 5-
9
Swamp dogwood
Cornus amomum subsp. Obliqua
Zones 4-
8
Swamp loosestrife
Decodon verticillatus
Zones 3-
9
Swamp magnolia
Magnolia virginiana var. Australis
Zones 5-
10
Swamp mallow
Hibiscus moscheutos
Zones 5-
9
Swamp milkweed
Asclepias incarnata 'Ice Ballet'
Zones 3-
9
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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 alyssum
Lobularia maritima 'Snow Crystals'
Zones 5-
9
Sweet alyssum
Lobularia maritima
Zones 5-
9
Sweet autumn virginsbower
Clematis terniflora
Zones 5-
9
Sweet azalea
Rhododendron arborescens
Zones 4-
7
Sweet basil
Ocimum basilicum
Zones 2-
11
Sweet bay magnolia
Magnolia virginiana 'Jim Wilson' MOONGLOW
Zones 5-
10
Sweet bay magnolia
Magnolia virginiana
Zones 5-
10
Sweet box
Sarcococca hookeriana var. Humilis
Zones 6-
8
Sweet box
Sarcococca hookeriana var. Humilis 'Sarsid2' FRAGRANT MOUNTAIN
Zones 6-
8
Sweet breath of spring
Lonicera fragrantissima
Zones 4-
8
Sweet briar rose
Rosa rubiginosa
Zones 4-
9
Sweet cicely
Osmorhiza longistylis
Zones 5-
8
Sweet cicely
Myrrhis odorata
Zones 5-
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
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Sweet gum
Liquidambar styraciflua 'Rotundiloba'
Zones 5-
9
Sweet gum
Liquidambar styraciflua 'Hapdell' HAPPIDAZE
Zones 5-
9
Sweet gum
Liquidambar styraciflua
Zones 5-
9
Sweet gum
Liquidambar acalycina
Zones 6-
9
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
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 pitcher plant
Sarracenia rubra
Zones 6-
8
Sweet pitcher plant
Sarracenia rubra f. Jonesii
Zones 6-
8
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
Sweet William silene
Silene armeria
Zones 5-
8
Sweet-amber
Hypericum androsaemum
Zones 5-
8
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Sweet-scented columbine
Aquilegia fragrans
Zones 5-
8
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 'Cloud Nine'
Zones 5-
9
Switch grass
Panicum virgatum 'Prairie Sky'
Zones 4-
9
Switch grass
Panicum virgatum 'Heavy Metal'
Zones 5-
9
Switch grass
Panicum virgatum 'Rehbraun'
Zones 5-
9
Switch grass
Panicum virgatum 'Squaw'
Zones 5-
9
Switch grass
Panicum virgatum 'Rotstrahlbusch'
Zones 5-
9
Switch grass
Panicum virgatum 'Shenandoah'
Zones 5-
9
Switch grass
Panicum virgatum 'Northwind'
Zones 5-
9
Switch grass
Panicum virgatum 'Dallas Blues'
Zones 5-
9
Switch grass
Panicum 'Prairie Fire'
Zones 5-
9
Switch grass
Panicum 'Huron Solstice'
Zones 4-
9
Switch grass
Panicum virgatum 'RR1' RUBY RIBBONS
Zones 4-
9
Switch grass
Panicum virgatum 'Badlands'
Zones 5-
9
Switch grass
Panicum virgatum 'Cheyenne Sky'
Zones 5-
9
Switch grass
Panicum virgatum 'Dust Devil'
Zones 4-
9
Switch grass
Panicum virgatum
Zones 5-
9
Sycamore maple
Acer pseudoplatanus f. Variegatum 'Simon-Louis Freres'
Zones 4-
7
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Sycamore maple
Acer pseudoplatanus
Zones 4-
7
Taiwan cherry
Prunus 'Okame'
Zones 6-
8
Tall bearded iris
Iris 'Midnight Fragrance'
Zones 3-
10
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View all 5960 plants for Zone 6 with advanced filtering options. Search by plant type, sun exposure, water needs, and more.
See All PlantsBest Plants for Zone 6
USDA Hardiness Zone 6 experiences winter minimum temperatures between -10 to 0°F. This collection includes 5960 plants specifically suited for Zone 6 conditions, including perennials, shrubs, ornamental trees.
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.