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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Iris cristata 'Edgar Anderson'
Item #: 4074
Zones: 3a to 8b
Dormancy: Winter
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 per -
Helleborus x hybridus Winter Delights White
Item #: 8215
Zones: 4a to 8b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price perNext crop available: N/ASold out -
Sold out
Cyclamen hederifolium 'Silver Angel'
Item #: 17665
Zones: 4a to 8b
Dormancy: Spring
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $21.00Regular priceUnit price perSold out -
Epimedium grandiflorum 'Silver Queen'
Item #: 2653
Zones: 4a to 8b
Dormancy: Winter
Height: 11" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Meehania cordata 'Roby Rose'
Item #: 17508
Zones: 5a to 7b, probably colder
Dormancy: Evergreen
Height: 5" 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 per -
Hosta 'Candelabra'
Item #: 12830
Zones: 3a to 9b
Dormancy: Winter
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular priceUnit price per -
Podophyllum mairei
Item #: 11689
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 24" tall
Culture: Part Sun to Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $35.00Regular priceUnit price per -
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Trillium maculatum 'Blakely'
Item #: 16614
Zones: 5a to 9b
Dormancy: Summer, Fall
Height: 12" tall
Culture: Light Shade to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price perNext crop available: N/ASold out -
Sold out
Cypripedium 'Lukas'
Item #: 13561
Zones: 4a to 7b, at least
Dormancy: Winter, Fall
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $90.00Regular priceUnit price perSold out -
Amorphophallus x konbus 'Green Genes'
Item #: 17093
Zones: 6a to 10b
Dormancy: Winter, Spring
Height: 40" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: Bare Root / 3.5" pot (24 fl. oz/0.7 L)
Regular price $50.00Regular priceUnit price per -
Athyrium filix-femina
Item #: 2260
Zones: 3a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Shade
Origin: Europe, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Hosta 'Drop-dead Gorgeous' PP 33,318
Item #: 17102
Zones: 3a to 8b
Dormancy: Winter
Height: 30" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Sabatia foliosa 'White Rose'
Item #: 7146
Zones: 6a to 8b, at least
Dormancy: Winter
Height: 8" 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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Paeonia 'Coral Charm'
Item #: 6186
Zones: 3a to 8a
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $34.00Regular priceUnit price perNext crop available: 01/19/2024Sold out -
Polygonatum odoratum var. pluriflorum 'Jinguji'
Item #: 9209
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Geranium phaeum 'Margaret Wilson'
Item #: 17555
Zones: 4a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Sun to Light Shade
Origin: Southeast Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Anemonella thalictroides 'Kikuzaki Pink'
Item #: 12951
Zones: 4a to 8b, at least
Dormancy: Winter, Summer, Fall
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $39.00Regular priceUnit price per -
Helleborus x hybridus Winter Delights Special
Item #: 17375
Zones: 4a to 8b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price perNext crop available: N/ASold out -
Echinacea 'Sombrero Tres Amigos' PP 30,750
Item #: 17573
Zones: 4a to 9b
Dormancy: Winter
Height: 22" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Hosta 'Tears in Heaven' PP 33,297
Item #: 17172
Zones: 3a to 8b
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $29.00Regular priceUnit price per -
Hosta 'Rippling Brook'
Item #: 15969
Zones: 3a to 8b
Dormancy: Winter
Height: 16" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular priceUnit price per -
Hosta 'Tuxedo'
Item #: 12831
Zones: 3a to 8b
Dormancy: Winter
Height: 15" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular priceUnit price per -
Lycoris x incarniensis 'Summer Sunrise'
Item #: 16765
Zones: 4a to 7b, probably colder
Dormancy: Summer
Height: 24" tall
Culture: Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $45.00Regular priceUnit price per -
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Carex siderosticta 'Echigo Nishiki'
Item #: 12168
Zones: 4a to 8b
Dormancy: Winter
Height: 10" tall
Culture: Light Shade
Origin: China, Japan, Russia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perNext crop available: 01/13/2023Sold out
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.