Perennial Plants for USDA Hardiness Zones 4a and 4b.
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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Symphyotrichum novae-angliae 'Purple Dome'
Item #: 953
Zones: 3a to 7b
Dormancy: Winter
Height: 18" 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 per -
Hibiscus 'Blackberry Merlot' PP 33,498
Item #: 16521
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 -
Osmunda cinnamomea
Item #: 1366
Zones: 3a to 9b
Dormancy: Winter
Height: 36" 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 -
Helleborus x hybridus 'Tropical Sunset'
Item #: 14369
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 $30.00Regular priceUnit price perNext crop available: 10/04/2024Sold out -
Salvia x sylvestris 'Violet Riot' PP 26,273
Item #: 10370
Zones: 4a to 8a
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Helleborus x hybridus Winter Delights Violet
Item #: 8208
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 $29.00Regular priceUnit price per -
Solidago sphacelata 'Golden Fleece'
Item #: 734
Zones: 4a to 9b
Dormancy: Winter
Height: 20" 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 per -
Hosta 'Liberty'
Item #: 4736
Zones: 3a to 8b
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $35.00Regular priceUnit price per -
Paeonia 'Scarlet O'Hara'
Item #: 5652
Zones: 4a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular priceUnit price per -
Heuchera 'Pink Panther' PP 31,224
Item #: 13568
Zones: 4a to 8a
Dormancy: Evergreen
Height: 8" 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 -
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 $19.00Regular priceUnit price per -
Astilbe 'Chocolate Shogun' PP 26,430
Item #: 13514
Zones: 3a to 7b
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: Hybrid, Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Rudbeckia maxima
Item #: 355
Zones: 4a to 9b
Dormancy: Winter
Height: 80" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Penstemon 'Dark Towers' PP 20,013
Item #: 8907
Zones: 3a to 8b
Dormancy: Evergreen
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 'Wedding Bells'
Item #: 13355
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: 10/04/2024Sold out -
Paeonia 'Miss America'
Item #: 10715
Zones: 4a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $35.00Regular priceUnit price per -
Digitalis thapsi 'Spanish Peaks'
Item #: 16658
Zones: 4a to 8b
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: Portugal, Spain
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Echinacea 'Salsa Red' PP 23,105
Item #: 9785
Zones: 4a to 9b
Dormancy: Winter
Height: 24" 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 -
Helleborus x hybridus Winter Delights Pink w/ Red Spots
Item #: 8207
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 $29.00Regular priceUnit price perNext crop available: 10/18/2024Sold out -
Asclepias asperula
Item #: 13329
Zones: 4a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Echinacea purpurea 'Fragrant Angel' PP 16,054
Item #: 5643
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 $22.00Regular priceUnit price perNext crop available: 06/21/2024Sold out -
Hibiscus 'Peppermint Flare'
Item #: 7867
Zones: 4a to 9b
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 -
Lespedeza thunbergii 'Gibraltar'
Item #: 2003
Zones: 4a to 9b
Dormancy: Winter
Height: 72" tall
Culture: Sun to Part Sun
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Helleborus x hybridus 'French Kiss'
Item #: 13126
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 $27.00Regular priceUnit price per
More Information About Plants for Zone 4
Zone 4a and Zone 4b Plants
Many of the perennial plants in our catalog are well-suited for Zones 4a or 4b. Some of our favorite species of ajuga, arum, aster, athyrium, baptisia, carex, clematis, cylcamen, cypripedium, dryopteris, echinacea, helleborus, hemerocallis, heuchera, hibiscus, hosta, lycoris, monarda, paeonia, penstemon, polygonatum, 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 4a annual minimum winter temperatures should be -30 to -25 °F (-34.4 to -31.7 °C). Zone 4b annual minimum temperatures should be -25 to -20 °F (-31.7 to -28.9 °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.