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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Coreopsis palustris 'Summer Sunshine'
Item #: 3802
Zones: 6a to 9b, at least
Dormancy: Winter
Height: 30" tall
Culture: 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 -
Hamamelis virginiana 'Little Prospect'
Item #: 15003
Zones: 3a to 8b
Dormancy: Winter
Height: 120" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3 qt. (2.8 L)
Regular price $46.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
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 $22.00Regular priceUnit price per -
Primula vulgaris 'Belarina Lively Lilac'
Item #: 15881
Zones: 5a to 7b, at least
Dormancy: Summer, Fall
Height: 7" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price perSold out -
Clematis ochroleuca 'Bald Knob'
Item #: 5943
Zones: 4b to 8b, at least
Dormancy: Winter
Height: 15" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Tripidium arundinaceum
Item #: 1735
Zones: 6a to 10b
Dormancy: Winter
Height: 120" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3 qt. (2.8 L)
Regular price $30.00Regular priceUnit price per -
Sold out
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 $26.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Sold out
Helleborus x hybridus 'Flower Girl'
Item #: 13354
Zones: 4a to 8b
Dormancy: Evergreen
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price perNext crop available: 10/18/2024Sold out -
Kniphofia 'Orange Blaze' PP 31,545
Item #: 13572
Zones: 5b to 8b, at least
Dormancy: Winter
Height: 24" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Primula vulgaris 'Belarina Pink Ice' PP 16,598
Item #: 15880
Zones: 5a to 7b, at least
Dormancy: Summer, Fall
Height: 7" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price perSold out -
Sisyrinchium angustifolium 'Lucerne'
Item #: 4782
Zones: 5a to 7b
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Cardamine douglassii 'Southern Lady'
Item #: 8601
Zones: 6a to 8b, at least
Dormancy: Summer, Fall
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $22.00Regular priceUnit price per -
Achillea 'Sassy Summer Lemon' PP 31,693
Item #: 13577
Zones: 5a to 8b, possibly much colder
Dormancy: Winter
Height: 28" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Agapanthus 'Navy Blue'
Item #: 12996
Zones: 6a to 10b
Dormancy: Winter
Height: 48" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Sold out
Hibiscus 'French Vanilla' PP 33,181
Item #: 16573
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 perNext crop available: 05/24/2024Sold out -
Physostegia virginiana 'Miss Manners'
Item #: 3172
Zones: 4a to 8b
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 $21.00Regular priceUnit price perNext crop available: 06/07/2024Sold out -
Baptisia australis
Item #: 1182
Zones: 4a to 9b
Dormancy: Winter
Height: 36" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular 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 $20.00Regular priceUnit price per -
Echinacea 'Rainbow Marcella' PP 28,573
Item #: 16170
Zones: 4a to 9b
Dormancy: Winter
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Sold out
Yucca flaccida 'Color Guard'
Item #: 1568
Zones: 4a to 10b
Dormancy: Evergreen
Height: 20" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
Heuchera 'Electric Plum' PP 29,924
Item #: 13495
Zones: 4a to 8a
Dormancy: Evergreen
Height: 10" 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 out
Saxifraga stolonifera 'Nezu Jinja'
Item #: 11494
Zones: 3a to 9b
Dormancy: Evergreen
Height: 5" tall
Culture: Part Sun to Shade
Origin: Eastern Asia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Ajuga reptans 'Black Scallop' PP 15,815
Item #: 13515
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 $19.00Regular priceUnit price per -
Pennisetum alopecuroides 'Foxtrot'
Item #: 6870
Zones: 5a to 9b
Dormancy: Winter
Height: 60" tall
Culture: Sun to Part Sun
Origin: Asia
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.