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.
-
Acanthus mollis 'Rue Ledan'
Item #: 4732
Zones: 6a to 8a
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Light Shade
Origin: Northern Africa, Southwest Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Sold outDystaenia takesimana
Item #: 17252
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 48" tall
Culture: Sun to Part Sun
Origin: Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Lychnis 'Hill Grounds'
Item #: 17021
Zones: 3a to 10b
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: Europe, Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $18.40Regular priceUnit price per$23.00Sale price $18.40
Sale -
Sold outHelleborus niger 'Mont Blanc'
Item #: 16513
Zones: 3a to 7b
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Sold outPaeonia 'Do Tell'
Item #: 17030
Zones: 4a to 8b
Dormancy: Winter
Height: 32" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $34.00Regular priceUnit price per -
Sold outHelleborus x hybridus 'Blue Diamond'
Item #: 17521
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 -
Sold outCypripedium 'Sabine Pastel'
Item #: 9607
Zones: 5a to 7b, at least
Dormancy: Winter, Fall
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $110.00Regular priceUnit price per -
Iris x louisiana 'Geisha Eyes'
Item #: 3912
Zones: 6a to 10b, at least
Dormancy: Summer
Height: 30" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Rudbeckia umbrosa
Item #: 9719
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 30" 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 -
Dryopteris cambrensis
Item #: 2108
Zones: 5a to 8b, at least
Dormancy: Evergreen
Height: 30" tall
Culture: Part Sun to Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $17.60Regular priceUnit price per$22.00Sale price $17.60Sale -
Sold outIris cristata 'Eco Orchid Giant'
Item #: 17856
Zones: 3a to 8b
Dormancy: Winter
Height: 5" tall
Culture: Part Sun to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Disporopsis bakerorum 'Bill Baker'
Item #: 17094
Zones: 6a to 9b, at least
Dormancy: Evergreen
Height: 20" tall
Culture: Part Sun to Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per$25.00Sale price $20.00
Sale -
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 $27.00Regular priceUnit price per -
Sold outBegonia grandis 'Alba'
Item #: 16767
Zones: 5a 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 $22.00Regular priceUnit price per -
Helleborus x glandorfensis 'Ice n' Roses Barolo' PP 30,488
Item #: 15877
Zones: 5a 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 $29.00Regular priceUnit price per -
Sorghastrum nutans 'Slim Pickens'
Item #: 16034
Zones: 6a to 9b, possibly much colder
Dormancy: Winter
Height: 84" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.60Regular priceUnit price per$27.00Sale price $21.60
Sale -
Polypodium vulgare 'Ulleung Island'
Item #: 5066
Zones: 5a to 8b
Dormancy: Evergreen
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Helleborus x hybridus Winter Delights Yellow w/ Red Spots
Item #: 9035
Zones: 4a to 8b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20Sold out -
Penstemon ovatus
Item #: 11361
Zones: 4a to 8a
Dormancy: Winter
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Solidago sp. nov. 'Montana Minnie'
Item #: 15762
Zones: 4a to 8a, guessing
Dormancy: Winter
Height: 3" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sold outHelleborus x lemperii 'Liara'
Item #: 17017
Zones: 4a to 8b
Dormancy: Evergreen
Height: 20" 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 -
Erythronium rostratum 'Texas Runner'
Item #: 12213
Zones: 4a to 8b, at least
Dormancy: Summer, Fall
Height: 6" 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 -
Hosta 'Miss America' PP 32,068
Item #: 16522
Zones: 3a to 8b
Dormancy: Winter
Height: 19" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Dryopteris uniformis 'Cristata'
Item #: 3516
Zones: 5a to 8b
Dormancy: Evergreen
Height: 20" tall
Culture: Light Shade to Shade
Origin: China, Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $17.60Regular priceUnit price per$22.00Sale price $17.60
Sale
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.