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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Dianthus 'Rose Bouquet' PP 30,274
Item #: 15891
Zones: 3a to 9b
Dormancy: Evergreen
Height: 8" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Amorphophallus x konbus 'Mary Sizemore'
Item #: 15753
Zones: 6a to 10b
Dormancy: Winter, Spring
Height: 46" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: Bare Root / 3.5" pot (24 fl. oz/0.7 L)
Regular price $35.00Regular priceUnit price per -
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 $30.00Regular priceUnit price per -
Podophyllum peltatum 'Maid Marion'
Item #: 15374
Zones: 5a to 8b, at least
Dormancy: Winter, Summer
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Hosta 'Christmas Eve'
Item #: 16076
Zones: 3a to 8b
Dormancy: Winter
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $32.00Regular priceUnit price per -
Sold out
Amsonia rigida 'Black's Dwarf'
Item #: 17144
Zones: 6a to 9b
Dormancy: Winter
Height: 15" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
Oxalis violacea 'Tyrian Purple'
Item #: 7770
Zones: 5a to 9b, possibly colder
Dormancy: Winter, Summer
Height: 6" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $22.00Regular priceUnit price per -
Hosta 'Coast to Coast' PP 26,469
Item #: 17104
Zones: 3a to 7b
Dormancy: Winter
Height: 36" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Panicum virgatum 'Niagara Falls' PP 34,509
Item #: 16748
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States
Pot Size: 2 qt. (1.9 L)
Regular price $24.00Regular priceUnit price per -
Lycoris x caldwellii 'Sunray'
Item #: 16769
Zones: 4b to 8b, at least
Dormancy: Summer
Height: 26" tall
Culture: Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $38.00Regular priceUnit price per -
Sold out
Ruellia sp. 'Humility'
Item #: 16728
Zones: 5b to 9a
Dormancy: Winter
Height: 16" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 05/31/2024Sold out -
Cyclamen hederifolium 'Mottled Madness'
Item #: 17666
Zones: 4a to 8b
Dormancy: Spring
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Southern Europe
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $22.00Regular priceUnit price perSold out -
Sarracenia 'Flies Demise'
Item #: 3128
Zones: 5a to 9b
Dormancy: Winter
Height: 10" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Marshallia caespitosa
Item #: 5782
Zones: 5a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Convallaria majalis 'Hardwick Hall'
Item #: 6826
Zones: 3a to 7b
Dormancy: Winter
Height: 9" tall
Culture: Part Sun to Shade
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $31.00Regular priceUnit price per -
Epimedium 'Spring Sunrise'
Item #: 14841
Zones: 6a to 8b, possibly colder
Dormancy: Evergreen
Height: 32" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $45.00Regular priceUnit price per -
Hosta 'Blue Pillow'
Item #: 13312
Zones: 3a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Arum italicum 'Silverella'
Item #: 16249
Zones: 4a to 9b
Dormancy: Summer
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Italy, Southeast Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular 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 -
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 $23.00Regular priceUnit price per -
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 $35.00Regular priceUnit price per -
Epimedium 'Golden Angels'
Item #: 14840
Zones: 5b to 8b, guessing
Dormancy: Winter
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $35.00Regular priceUnit price per -
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 $32.00Regular priceUnit price per -
Hosta 'Summer Snowstorm'
Item #: 13314
Zones: 3a to 9b
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular 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.