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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Sold outAllium 'Millenium'
Item #: 5466
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Heuchera 'Grande Amethyst' PP 30,932
Item #: 14350
Zones: 4a to 8a
Dormancy: Evergreen
Height: 16" tall
Culture: Part Sun to Light Shade
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per
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Hibiscus 'Airbrush Effect' PP 29,295
Item #: 13757
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 -
Sold outHelleborus x hybridus 'Sun Flare'
Item #: 14317
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 $32.00Regular priceUnit price per -
Hosta 'Stained Glass'
Item #: 4232
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 $29.00Regular priceUnit price per -
Dryopteris sieboldii
Item #: 1836
Zones: 6a to 9b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Shade
Origin: China, Japan, Taiwan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Adiantum x mairisii
Item #: 4799
Zones: 6a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Helleborus x hybridus 'Cotton Candy'
Item #: 3382
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 $29.00Regular priceUnit price per -
Delosperma 'Mountain Dew' PP 31,543
Item #: 16806
Zones: 5a to 8a, at least
Dormancy: Evergreen
Height: 1" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Buddleia 'Miss Molly' PP 23,425
Item #: 9166
Zones: 5a to 9b
Dormancy: Winter
Height: 60" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Monarda 'Leading Lady Plum' PP 26,447
Item #: 13492
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Disporum flavens
Item #: 691
Zones: 4a to 9b
Dormancy: Winter
Height: 30" tall
Culture: Part Sun to Shade
Origin: Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Aralia cordata 'Sun King'
Item #: 9133
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 72" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sold outAgastache 'Peachie Keen' PP 25,886
Item #: 10635
Zones: 5a to 8b
Dormancy: Winter
Height: 24" 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 -
Helleborus x hybridus 'Peppermint Ice'
Item #: 4013
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 $29.00Regular priceUnit price per -
Laurentia fluviatilis
Item #: 1355
Zones: 5a to 10b
Dormancy: Evergreen
Height: 1" tall
Culture: Sun to Light Shade
Origin: Australia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Helleborus x ericsmithii 'Joker' PP 22,022
Item #: 9266
Zones: 5a to 8b
Dormancy: Evergreen
Height: 10" 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 -
Tamarix ramosissima 'Pink Cascade'
Item #: 8757
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 144" tall
Culture: Sun
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Hibiscus 'Spinderella' PP 33,309
Item #: 16519
Zones: 4a to 9b
Dormancy: Winter
Height: 54" 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 -
Hosta 'Designer Genes'
Item #: 2861
Zones: 3a to 8b
Dormancy: Winter
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $29.00Regular priceUnit price per -
Rosa 'Tausendschon'
Item #: 15654
Zones: 5b to 9a, at least
Dormancy: Winter
Height: 144" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $34.00Regular priceUnit price per -
Myosotis palustris 'Southern Blues'
Item #: 1427
Zones: 4a to 8b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Iris x louisiana 'Red Velvet Elvis'
Item #: 8905
Zones: 6a to 10b
Dormancy: Summer
Height: 36" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Chrysanthemum 'Gethsemane Moonlight'
Item #: 9818
Zones: 5a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular 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.