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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Baptisia 'Purplicious'
Item #: 14275
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 $25.00Regular priceUnit price per
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Hemerocallis 'Autumn Minaret'
Item #: 2107
Zones: 3a to 9b
Dormancy: Winter
Height: 75" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Salvia darcyi 'Presidio'
Item #: 17484
Zones: 6a to 10b, possibly colder
Dormancy: Winter
Height: 54" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Ajuga pyramidalis 'Metallica Crispa Purpurea'
Item #: 39
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $15.20Regular priceUnit price per$19.00Sale price $15.20Sale -
Hosta 'Pocketful of Sunshine' PP 23,709
Item #: 2865
Zones: 3a to 8b
Dormancy: Winter
Height: 9" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Hibiscus 'Cherry Choco Latte' PP 30,738
Item #: 13758
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 per -
Heuchera 'Citronelle'
Item #: 7703
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sold outHelleborus foetidus 'Red Silver'
Item #: 7707
Zones: 5a to 9b
Dormancy: Evergreen
Height: 30" tall
Culture: Part Sun to Light Shade
Origin: Western Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Bletilla striata 'Kuchibeni'
Item #: 1860
Zones: 6a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Part Sun
Origin: Burma/Myanmar, China, Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Lysimachia congestiflora 'Persian Chocolate'
Item #: 5803
Zones: 6a to 9b, at least
Dormancy: Winter
Height: 2" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $16.00Regular priceUnit price per$20.00Sale price $16.00Sale -
Erigeron pulchellus 'Meadow Muffin'
Item #: 1547
Zones: 5a to 8b, at least
Dormancy: Evergreen
Height: 10" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Baptisia 'Cinnamon Candles'
Item #: 3948
Zones: 4a to 9b
Dormancy: Winter
Height: 50" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Crambe maritima
Item #: 14328
Zones: 5b to 7b, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: Denmark, Europe, France, Norway, Spain, United Kingdom
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Polygonatum odoratum 'Fireworks'
Item #: 8407
Zones: 4a to 9b
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 $36.00Regular priceUnit price per -
Arachniodes standishii
Item #: 6234
Zones: 4a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Light Shade
Origin: China, Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Thalictrum aquilegiifolium 'Nimbus White'
Item #: 14264
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 28" tall
Culture: Sun to Part Sun
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $0.00Regular priceUnit price perThis plant is available for JLBG Members only.
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Isodon effusus
Item #: 5413
Zones: 6a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $17.60Regular priceUnit price per$22.00Sale price $17.60Sale -
Sold outAstilbe 'Delft Lace' PP 19,839
Item #: 14594
Zones: 3a to 7b, at least
Dormancy: Winter
Height: 26" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Hosta 'Paradigm'
Item #: 3012
Zones: 3a to 8b
Dormancy: Winter
Height: 20" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Alstroemeria 'Summer Relieve'
Item #: 14366
Zones: 5b to 8b, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Euphorbia robbiae
Item #: 1293
Zones: 6a to 8b
Dormancy: Evergreen
Height: 18" tall
Culture: Part Sun to Shade
Origin: Asia Minor
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Sambucus canadensis 'Blonde Envy'
Item #: 16985
Zones: 5a to 9a, guessing
Dormancy: Winter
Height: 72" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.40Regular priceUnit price per$28.00Sale price $22.40
Sale -
Helleborus x hybridus 'Sandy Shores'
Item #: 13128
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 x perralchicum 'Frohnleiten'
Item #: 2984
Zones: 5b to 8b, at least
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 $30.00Regular 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.