Before shopping for plants based on your USDA Plant Hardiness Zone, please read our in-depth article about Plant Hardiness Zone Maps to understand their uses and their limitations.
Use the official USDA Hardiness Zone Map to determine your zone by zip code.
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Dracunculus vulgaris
Item #: 2821
Zones: 5b to 8b
Dormancy: Summer, Fall
Height: 36" tall
Culture: Sun to Light Shade
Origin: Mediterranean Europe
Pot Size: Bare Root / 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perSold out -
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Tiarella 'Pink Skyrocket'
Item #: 5106
Zones: 3a to 8b
Dormancy: Evergreen
Height: 8" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price perNext crop available: 05/31/2024Sold out -
Buddleia lindleyana
Item #: 88
Zones: 5a to 9b
Dormancy: Winter
Height: 72" tall
Culture: Sun
Origin: China
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Rosa 'Tausendschon'
Item #: 15654
Zones: 5b to 9a, at least
Dormancy: Winter
Height: 144" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $34.00Regular priceUnit price per -
Thalictrum 'Black Stockings'
Item #: 6482
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 72" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Oenothera fruticosa 'Fireworks'
Item #: 8719
Zones: 3a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Pulmonaria 'Silver Bouquet' PP 20,059
Item #: 8623
Zones: 3a to 8b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Eryngium ravenelii 'Charleston Blues'
Item #: 13008
Zones: 6a to 9b, guessing
Dormancy: Winter
Height: 30" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Podophyllum 'Spotty Dotty' PP 17,361
Item #: 6301
Zones: 5a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Light Shade to Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $55.00Regular priceUnit price per -
Agave havardiana
Item #: 5007
Zones: 5a to 9b
Dormancy: Evergreen
Height: 20" tall
Culture: Sun
Origin: Mexico, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Primula japonica
Item #: 1789
Zones: 4a to 8b, at least
Dormancy: Summer, Fall
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Helleborus x ballardiae 'Cinnamon Snow' PP 21,003
Item #: 9268
Zones: 5a to 8b, at least
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price perNext crop available: 10/04/2024Sold out -
Hibiscus 'Spinderella' PP 33,309
Item #: 16519
Zones: 4a to 9b
Dormancy: Winter
Height: 54" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
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Gymnaster savatieri 'Edo Murasaki'
Item #: 9582
Zones: 5a to 8b
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price perNext crop available: 05/24/2024Sold out -
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Helleborus x hybridus 'True Love'
Item #: 13130
Zones: 4a to 8b
Dormancy: Evergreen
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price perNext crop available: 10/04/2024Sold out -
Symphyotrichum oblongifolium 'Fanny'
Item #: 341
Zones: 4a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
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Epimedium 'Domino'
Item #: 8493
Zones: 5a to 8b, at least
Dormancy: Evergreen
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $32.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Selaginella uncinata
Item #: 1451
Zones: 6a to 10b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Brunnera macrophylla 'Queen of Hearts' PP 32,737
Item #: 15741
Zones: 3a to 7b
Dormancy: Winter
Height: 18" tall
Culture: Light Shade to Shade
Origin: Mediterranean Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Hosta 'Rainbow's End' PP 17,251
Item #: 6035
Zones: 3a to 8b
Dormancy: Winter
Height: 4" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $30.00Regular priceUnit price per -
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Echinacea 'Kismet Red' PP 29,743
Item #: 14336
Zones: 4a to 9b
Dormancy: Winter
Height: 18" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 05/24/2024Sold out -
Hosta 'Touch of Class'
Item #: 4625
Zones: 3a to 8b
Dormancy: Winter
Height: 12" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $32.00Regular priceUnit price per -
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Hibiscus 'Fireball'
Item #: 4779
Zones: 4a to 9b
Dormancy: Winter
Height: 48" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perNext crop available: 05/31/2024Sold out -
Hosta 'Mini Skirt' PP 26,743
Item #: 6343
Zones: 3a to 8b
Dormancy: Winter
Height: 7" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per
More Information About Plants for Zone 6
Zone 6a and Zone 6b Plants
Many of the perennial plants in our catalog are well-suited for Zones 6a or 6b. Some of our favorite species of acanthus, achillea, agapanthus, agastache, baptisia, brunnera, buddleia, carex, chrysanthemum, coreopsis, delosperma, dentaria, dianthus, echinacea, epimedium, euphorbia, geranium, heuchera, hosta, kniphofia, lilium, lycoris, monarda, paeonia, phlox, polygonatum, podophyllum, rohdea, salvia, solidago and more can survive Zone 4 winter temperatures. Be sure to read how we assign hardiness zones to our plants.
The current USDA Plant Hardiness Zone Map was last updated in 2012 and is based on the average annual minimum winter temperature, divided into 10-degree F zones. Each zone is then subdivided into 5-degree F sub-zones. Zone numbers increase as you move from north to south.
Zone 6a annual minimum winter temperatures should be -10 to -5 °F (-23.3 to -20.6 °C). Zone 6b annual minimum temperatures should be -5 to 0 °F (-20.6 to -17.8 °C). Keep in mind that the zone designation does not tell you how many days the area may reach those average minimums. There can also be a major difference between what plants will grow in the 'a' or 'b' sub-zones.