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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Hosta 'Thumb Bluelina'
Item #: 13365
Zones: 3a to 8b
Dormancy: Winter
Height: 5" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $35.00Regular priceUnit price per -
Cyclamen hederifolium ssp. crassifolium white flowers
Item #: 17626
Zones: 4a to 8b
Dormancy: Spring, Summer
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Greece
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $22.00Regular priceUnit price per -
Sold out
Trillium ludovicianum 'Alexandria'
Item #: 16977
Zones: 6a to 9b, at least
Dormancy: Summer, Fall
Height: 12" tall
Culture: Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price perSold out -
Sauromatum venosum 'Lake Tana'
Item #: 16742
Zones: 6a to 10b, at least
Dormancy: Winter, Fall
Height: 24" tall
Culture: Part Sun to Shade
Origin: Ethiopia
Pot Size: Bare Root / 3.5" pot (24 fl. oz/0.7 L)
Regular price $38.00Regular priceUnit price per -
Dryopteris championii
Item #: 2966
Zones: 5a to 8b
Dormancy: Evergreen
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: China, Japan, Taiwan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Aconitum carmichaelii 'Fansi Pansi'
Item #: 10055
Zones: 3a to 8b
Dormancy: Winter
Height: 54" tall
Culture: Sun to Light Shade
Origin: Vietnam
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Sold out
Erythronium umbilicatum
Item #: 7656
Zones: 6a to 9b, at least
Dormancy: Winter, Summer, Fall
Height: 4" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $28.00Regular priceUnit price perSold out -
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 'Uptown Girl'
Item #: 5215
Zones: 3a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $32.00Regular priceUnit price per -
Cypripedium 'Hank Small'
Item #: 7505
Zones: 4a to 8a
Dormancy: Winter, Fall
Height: 18" 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 per -
Iris giganticaerulea 'Boutte'
Item #: 17196
Zones: 6a to 10b
Dormancy: Evergreen
Height: 48" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Carex conica 'Hime'
Item #: 95
Zones: 5a to 9b
Dormancy: Evergreen
Height: 10" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Sold out
Baptisia minor 'Blue Bonnet'
Item #: 3716
Zones: 3a to 9b
Dormancy: Winter
Height: 30" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price perNext crop available: 04/18/2025Sold out -
Erythronium americanum 'Silver Pigeon'
Item #: 15563
Zones: 4a to 8b, at least
Dormancy: Summer, Fall
Height: 2" tall
Culture: Light Shade
Origin: United States
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $28.00Regular priceUnit price per -
Asarum arifolium var. callifolium 'Rock and Roll'
Item #: 17979
Zones: 5a to 9b
Dormancy: Evergreen
Height: 6" 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: 06/28/2024Sold out -
Viola pedata 'Blue Bibb'
Item #: 12804
Zones: 4a to 8b
Dormancy: Evergreen
Height: 3" 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 per -
Geranium phaeum 'Samobor'
Item #: 4123
Zones: 4a to 8b
Dormancy: Winter
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Croatia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Helleborus x sahinii 'Winterbells' PP 24,434
Item #: 3315
Zones: 5a to 8b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Pycnanthemum albescens 'Malcolm Vidrine'
Item #: 17623
Zones: 5a to 9b, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Lycoris x jinzheniae 'Lemon Cheesecake'
Item #: 16770
Zones: 4b to 8b, 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 $35.00Regular priceUnit price per -
Asphodeline damascena
Item #: 10252
Zones: 6a to 9b, at least
Dormancy: Summer
Height: 36" tall
Culture: Sun
Origin: Syria, Turkey
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Lilium 'Tiger Babies'
Item #: 17854
Zones: 3a to 9b
Dormancy: Winter, Fall
Height: 48" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Sempervivum 'Pacific Blue Ice'
Item #: 17257
Zones: 4a to 8a
Dormancy: Evergreen
Height: 2" tall
Culture: Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Baptisia 'Lavender Candles'
Item #: 8340
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular 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.