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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Hemerocallis 'Striped Fantastic' PP 23,154
Item #: 5199
Zones: 3a to 9b
Dormancy: Winter
Height: 24" tall
Culture: Sun to Part Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $50.00Regular priceUnit price per -
Ajuga 'Tropical Toucan' PPAF
Item #: 16739
Zones: 4a to 8b
Dormancy: Evergreen
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Italy
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Anemone keiskeiana
Item #: 9646
Zones: 4a to 8b
Dormancy: Summer
Height: 4" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $23.00Regular priceUnit price per -
Iris cristata 'Mountain Girl'
Item #: 10784
Zones: 3a to 8b
Dormancy: Winter
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Artemisia frigida 'Silver Eagle'
Item #: 17117
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 18" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
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Cypripedium 'Philipp'
Item #: 8074
Zones: 4a to 8a, at least
Dormancy: Winter, Fall
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $65.00Regular priceUnit price perSold out -
Panicum virgatum 'Ruby Ribbons' PP 17,944
Item #: 8334
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States
Pot Size: 2 qt. (1.9 L)
Regular price $24.00Regular priceUnit price perSold out -
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Syneilesis palmata
Item #: 5617
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Japan, Korea
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price perNext crop available: 04/18/2025Sold out -
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Vinca minor 'Illumination'
Item #: 3419
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 2" tall
Culture: Part Sun to Shade
Origin: Asia, Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price perSold out -
Carex divulsa
Item #: 8932
Zones: 4a to 10b
Dormancy: Evergreen
Height: 15" 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 -
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Baptisia 'Dark Net'
Item #: 3949
Zones: 4a to 9b
Dormancy: Winter
Height: 60" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price perNext crop available: 05/31/2024Sold out -
Carex bromoides
Item #: 12439
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 6" tall
Culture: Sun to Shade
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Artemisia mexicana 'Fredericksburg'
Item #: 15923
Zones: 3a to 8b
Dormancy: Winter
Height: 24" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Ionactis linariifolia 'Little Stiffy'
Item #: 5763
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Baptisia 'Pink Ice'
Item #: 11835
Zones: 3a to 8b
Dormancy: Winter
Height: 42" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Hosta 'Risky Business'
Item #: 4270
Zones: 3a to 8b
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $32.00Regular priceUnit price per -
Festuca arundinacea 'Glow Sticks' PP 34,648
Item #: 17053
Zones: 3a to 8a
Dormancy: Evergreen
Height: 24" tall
Culture: Sun
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Helleborus x lemperii 'Walberton's Rosemary' PP 19,439
Item #: 9417
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 $22.40Regular priceUnit price per$28.00Sale price $22.40Sale -
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Cyclamen coum 'Maurice Dryden'
Item #: 3319
Zones: 4a to 8b
Dormancy: Summer, Fall
Height: 2" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $24.00Regular priceUnit price perSold out -
Hosta 'Age of Gold' PP 30,902
Item #: 13552
Zones: 3a to 7b
Dormancy: Winter
Height: 24" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Hosta 'Sum and Substance'
Item #: 1102
Zones: 3a to 8b
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $30.00Regular priceUnit price per -
Lespedeza thunbergii 'Spilt Milk'
Item #: 7142
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 $25.00Regular priceUnit price per -
Paeonia ostii 'Feng Dan Bai'
Item #: 2527
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 60" tall
Culture: Sun to Part Sun
Origin: China
Pot Size: 3 qt. (2.8 L)
Regular price $65.00Regular priceUnit price per -
Helleborus x hybridus 'Shotgun Wedding'
Item #: 16763
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 perNext crop available: 10/25/2024Sold out
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.