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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Lycoris x jinzheniae 'September Cream Beauty'
Item #: 17436
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 $30.00Regular priceUnit price per
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Helianthus mollis 'Tulsa Gold'
Item #: 18367
Zones: 4a to 9b
Dormancy: Winter
Height: 60" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $18.40Regular priceUnit price per$23.00Sale price $18.40Sale -
Sempervivum 'SuperSemp Emerald'
Item #: 18149
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 -
Sold outHosta 'Simply Divine'
Item #: 13313
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 $29.00Regular priceUnit price per -
Ajuga reptans 'XXL'
Item #: 17502
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 4" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Amsonia 'Wild Blue Yonder'
Item #: 16659
Zones: 5a 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 $24.00Regular priceUnit price per -
Minuartia laricifolia
Item #: 14056
Zones: 5a to 8a
Dormancy: Evergreen
Height: 6" tall
Culture: Sun
Origin: France, Italy, Spain
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $17.60Regular priceUnit price per$22.00Sale price $17.60Sale -
Sold outTrillium recurvatum 'Arcadia'
Item #: 8684
Zones: 5a to 9b
Dormancy: Summer, Fall
Height: 18" tall
Culture: Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Sold outAsparagus tenuifolius 'Vodice'
Item #: 18109
Zones: 5a to 10b
Dormancy: Winter
Height: 12" tall
Culture: Sun to Part Sun
Origin: Albania, Austria, Balkans, Bulgaria, France, Greece, Italy, Romania, Switzerland, Turkey, Ukraine
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Symphyotrichum ericoides 'Snow Flurry'
Item #: 3225
Zones: 3a to 8b
Dormancy: Winter
Height: 6" 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 -
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 $21.00Regular 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 $17.60Regular priceUnit price per$22.00Sale price $17.60Sale -
Echinacea 'Tequila Sunrise' PP 34,433
Item #: 18231
Zones: 4a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sold outAcis autumnalis 'September Snow'
Item #: 8031
Zones: 6a to 9b, possibly colder
Dormancy: Summer
Height: 8" tall
Culture: Sun to Light Shade
Origin: Mediterranean Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Hosta 'Blue Twister'
Item #: 15972
Zones: 3a to 8b
Dormancy: Winter
Height: 11" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $29.00Regular priceUnit price per -
Delosperma 'Dancing Embers' PP36547
Item #: 18267
Zones: 6a to 8b, at least
Dormancy: Evergreen
Height: 2" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Dryopteris crassirhizoma
Item #: 2733
Zones: 5a to 8b
Dormancy: Evergreen
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: Asia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Buddleia davidii 'Butterfly Gold' PP 33,807
Item #: 18349
Zones: 6a to 9b, at least
Dormancy: Winter
Height: 84" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Orixa japonica 'Pearl Frost'
Item #: 15656
Zones: 5b to 8a, at least
Dormancy: Winter
Height: 96" tall
Culture: Part Sun to Light Shade
Origin: Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.60Regular priceUnit price per$32.00Sale price $25.60
Sale -
Penstemon havardii
Item #: 18347
Zones: 5b to 9b, at least
Dormancy: Evergreen
Height: 72" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $16.80Regular priceUnit price per$21.00Sale price $16.80Sale -
Helleborus x hybridus 'Dashing Groomsman'
Item #: 17355
Zones: 4a 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 $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Epimedium 'Cranberry Dancer' PP36548
Item #: 17338
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 $28.00Regular priceUnit price per$35.00Sale price $28.00Sale -
Sold outEpimedium x rubrum 'Sweetheart'
Item #: 3684
Zones: 4a to 8b
Dormancy: Evergreen
Height: 16" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Sarracenia x moorei 'Red Saucers'
Item #: 18300
Zones: 5a to 9b
Dormancy: Winter
Height: 28" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 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 USDA Plant Hardiness Zone Map 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.