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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Cypripedium reginae
Item #: 3897
Zones: 2a to 7a
Dormancy: Winter, Fall
Height: 18" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $65.00Regular priceUnit price perSold out -
Hibiscus 'Summer Carnival' PP 31,587
Item #: 13724
Zones: 4a to 9b
Dormancy: Winter
Height: 42" 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 -
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 $25.00Regular 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 -
Hosta 'Earth Angel'
Item #: 4715
Zones: 3a to 8b
Dormancy: Winter
Height: 36" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
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Echinacea 'Big Kahuna' PP 26,159
Item #: 14337
Zones: 4a to 9b
Dormancy: Winter
Height: 28" tall
Culture: 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: 05/30/2025Sold out -
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 -
Baptisia 'Cherries Jubilee' PP 23,907
Item #: 9452
Zones: 4a to 9b
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price perSold out -
Brunnera macrophylla 'Jack Frost'
Item #: 3367
Zones: 3a to 7b
Dormancy: Winter
Height: 12" tall
Culture: Light Shade to Shade
Origin: Mediterranean Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular 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 $27.00Regular priceUnit price per -
Asclepias tuberosa 'Hello Yellow'
Item #: 6700
Zones: 4a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Monarda 'Bubblegum Blast' PP 27,497
Item #: 11860
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 24" 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 -
Baptisia 'Blue Towers' PP 27,088
Item #: 8338
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 54" 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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Athyrium filix-femina 'Lady in Red'
Item #: 4968
Zones: 3a to 8b
Dormancy: Winter
Height: 20" 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 perSold out -
Helleborus x hybridus 'Dark and Handsome'
Item #: 13124
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 per -
Lobelia cardinalis 'Black Truffle' PP 25,687
Item #: 6226
Zones: 3a to 9b
Dormancy: Evergreen
Height: 48" 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 '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 -
Penstemon 'Midnight Masquerade' PP 29,603
Item #: 13493
Zones: 3a to 8b
Dormancy: Evergreen
Height: 32" 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 -
Hosta 'Blue Mouse Ears'
Item #: 4677
Zones: 3a to 8b
Dormancy: Winter
Height: 6" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Matteuccia struthiopteris 'The King'
Item #: 8692
Zones: 3a to 8b
Dormancy: Winter
Height: 36" 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 -
Helleborus x hybridus 'Red Sapphire'
Item #: 4045
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 -
Helleborus x hybridus 'Maid of Honor'
Item #: 13125
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 per -
Tiarella 'Pink Skyrocket'
Item #: 5106
Zones: 3a to 8b
Dormancy: Evergreen
Height: 8" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Helleborus x hybridus 'Painted Doubles'
Item #: 9747
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
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 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 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.