Smooth yellow violet
Viola pubescens var. Eriocarpa
Zones 3-
7
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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Snake fir
Picea abies 'Virgata'
Zones 4-
6
Snake's head fritillary
Fritillaria meleagris
Zones 3-
8
Snakebark maple
Acer davidii
Zones 5-
7
Snakebark maple
Acer capillipes
Zones 5-
7
Sneeze weed
Eupatorium capillifolium 'Elegant Feather'
Zones 6-
9
Sneezeweed
Helenium 'Bruno'
Zones 3-
8
Sneezeweed
Helenium 'Zimbelstern'
Zones 3-
8
Sneezeweed
Helenium 'Moerheim Beauty'
Zones 3-
8
Sneezeweed
Helenium 'Goldlackzwerg' GILDED DWARF
Zones 4-
8
Sneezeweed
Helenium 'Helbro' MARDI GRAS
Zones 4-
8
Sneezeweed
Helenium autumnale
Zones 3-
8
Sneezeweed
Helenium amarum
Zones 3-
10
Sneezeweed
Helenium virginicum
Zones 5-
8
Sneezeweed
Helenium 'Ruby Charm'
Zones 4-
8
Sneezeweed
Helenium 'Sombrero'
Zones 3-
9
Sneezeweed
Helenium 'Balsalulow' SALUD YELLOW
Zones 4-
9
Sneezeweed
Helenium autumnale 'Balsaluemb' SALUD EMBERS
Zones 4-
9
Sneezewort
Achillea ptarmica (The Pearl Group)
Zones 3-
9
Sneezewort
Achillea ptarmica 'Gipi Whit' GYPSY WHITE
Zones 3-
9
Snow crocus
Crocus chrysanthus 'Snowbunting'
Zones 3-
8
Snow crocus
Crocus tommasinianus
Zones 3-
8
Snow crocus
Crocus tommasinianus 'Ruby Giant'
Zones 3-
8
Snow crocus
Crocus chrysanthus 'Goldilocks'
Zones 3-
8
Snow crocus
Crocus chrysanthus 'Advance'
Zones 3-
8
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Snow on the mountain
Euphorbia marginata
Zones 2-
11
Snow poppy
Eomecon chionantha
Zones 6-
9
Snow-in-summer
Cerastium tomentosum 'Yo Yo'
Zones 3-
7
Snow-in-summer
Cerastium tomentosum
Zones 3-
7
Snow-in-summer
Cerastium tomentosum 'Olympia'
Zones 3-
8
Snowbell
Styrax japonicus (Benibana Group) 'Pink Chimes'
Zones 5-
8
Snowberry
Symphoricarpos × chenaultii 'Hancock'
Zones 4-
7
Snowberry
Symphoricarpos albus
Zones 3-
7
Snowberry
Symphoricarpos × chenaultii
Zones 4-
7
Snowdrop
Galanthus nivalis 'Flore Pleno'
Zones 3-
7
Snowdrop
Galanthus nivalis 'Viridi-apice'
Zones 3-
7
Snowdrop
Galanthus elwesii
Zones 4-
7
Snowdrop
Galanthus nivalis
Zones 3-
7
Snowdrop
Galanthus alpinus
Zones 5-
7
Snowdrop
Galanthus ikariae
Zones 3-
7
Snowdrop windflower
Anemone sylvestris
Zones 4-
8
Soapwort
Saponaria × lempergii 'Max Frei'
Zones 3-
7
Soapwort
Saponaria officinalis 'Flore Pleno'
Zones 3-
8
Soft shield fern
Polystichum setiferum (Plumosomultilobum Group)
Zones 6-
8
Soft shield fern
Polystichum setiferum
Zones 6-
8
Softstem bulrush
Schoenoplectus tabernaemontani
Zones 4-
9
Solitary clematis
Clematis integrifolia 'Caerulea'
Zones 3-
7
Solitary clematis
Clematis integrifolia 'Rose Colored Glasses'
Zones 3-
7
Solitary clematis
Clematis integrifolia
Zones 3-
7
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Solomon's seal
Polygonatum odoratum var. Pluriflorum 'Variegatum'
Zones 3-
8
Solomon's seal
Polygonatum odoratum
Zones 3-
8
Solomon's seal
Polygonatum biflorum
Zones 3-
8
Solomon's seal
Polygonatum 'Prince Charming'
Zones 4-
7
Solomon's seal
Polygonatum odoratum 'Byakko'
Zones 4-
9
Sophora
Sophora davidii
Zones 6-
9
Sorghum
Sorghum bicolor
Zones 2-
11
Sour cherry
Prunus 'North Star'
Zones 4-
8
Sourwood
Oxydendrum arboreum
Zones 5-
9
Southern blue flag
Iris virginica 'Contraband Girl'
Zones 5-
9
Southern blue flag
Iris virginica
Zones 5-
9
Southern blue flag
Iris virginica var. Shrevei
Zones 5-
9
Southern bush honeysuckle
Diervilla sessilifolia 'LPDC Podaras' COOL SPLASH
Zones 4-
8
Southern lady fern
Athyrium asplenioides
Zones 5-
9
Southern magnolia
Magnolia grandiflora 'Bracken's Brown Beauty'
Zones 5-
9
Southern prairie aster
Eurybia hemispherica
Zones 6-
9
Southern red oak
Quercus falcata
Zones 6-
9
Southernwood
Artemisia abrotanum
Zones 4-
8
Southwestern white pine
Pinus strobiformis 'Coronado'
Zones 5-
9
Soy bean
Glycine max
Zones 2-
11
Spanish bluebell
Hyacinthoides hispanica 'Rose Queen'
Zones 3-
8
Spanish bluebell
Hyacinthoides hispanica 'White City'
Zones 3-
8
Spanish bluebell
Hyacinthoides hispanica 'White Triumphator'
Zones 3-
8
Spanish bluebell
Hyacinthoides hispanica 'Excelsior'
Zones 3-
8
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Spanish bluebell
Hyacinthoides hispanica 'Rosabella'
Zones 3-
8
Spanish bluebell
Hyacinthoides hispanica
Zones 3-
8
Spanish fir
Abies pinsapo
Zones 6-
7
Spanish fir
Abies pinsapo 'Horstmann'
Zones 6-
8
Spearmint
Mentha spicata 'Kentucky Colonel'
Zones 5-
9
Species daffodil
Narcissus poeticus var. Recurvus
Zones 3-
7
Species daffodil
Narcissus jonquilla
Zones 4-
8
Species iris
Iris spuria subsp. Halophila
Zones 4-
8
Species iris
Iris spuria subsp. Carthaliniae
Zones 5-
9
Speedwell
Veronica 'Darwin's Blue'
Zones 4-
8
Speedwell
Veronica 'Giles van Hees'
Zones 4-
8
Speedwell
Veronica 'Sunny Border Blue'
Zones 4-
9
Speedwell
Veronica 'Waterperry Blue'
Zones 4-
8
Speedwell
Veronica peduncularis 'Georgia Blue'
Zones 6-
9
Speedwell
Veronica 'Mann's Variety'
Zones 5-
8
Speedwell
Veronica 'Heraud'
Zones 4-
8
Speedwell
Veronica 'Pink Damask'
Zones 4-
8
Speedwell
Veronica 'White Jolanda'
Zones 4-
8
Speedwell
Veronica spicata 'Noah Williams'
Zones 5-
8
Speedwell
Veronica spicata 'High Five'
Zones 4-
8
Speedwell
Veronica 'Foxy Lady'
Zones 4-
8
Speedwell
Veronica 'Hocus Pocus'
Zones 4-
8
Speedwell
Veronica 'First Love'
Zones 4-
8
Speedwell
Veronica 'Sweet Lullaby'
Zones 4-
8
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Speedwell
Veronica liwanensis
Zones 4-
9
Speedwell
Veronica peduncularis
Zones 6-
9
Speedwell
Veronica 'Novaverblu' DARK BLUE MOODY BLUES
Zones 4-
9
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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.