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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Clematis fruticosa 'Mongolian Gold'
Item #: 3572
Zones: 4a to 7b, at least
Dormancy: Winter
Height: 18" tall
Culture: Sun
Origin: Eastern Asia, Mongolia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Hosta 'June'
Item #: 1672
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 $30.00Regular priceUnit price per -
Iris cristata 'Powder Blue Giant'
Item #: 2592
Zones: 3a to 8b
Dormancy: Winter
Height: 12" tall
Culture: Part Sun to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Aconitum carmichaelii 'Autumn Indigo'
Item #: 6999
Zones: 3a to 8b
Dormancy: Winter
Height: 60" tall
Culture: Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Echinacea 'Double Scoop Cranberry' PP 24,769
Item #: 14347
Zones: 4a to 9b
Dormancy: Winter
Height: 16" 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 -
Hemerocallis 'August Flame'
Item #: 4323
Zones: 3a to 9b
Dormancy: Winter
Height: 40" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $30.00Regular priceUnit price per -
Ajuga 'Parrot Paradise' PPAF
Item #: 16733
Zones: 4a to 9b
Dormancy: Evergreen
Height: 3" tall
Culture: Part Sun to Light Shade
Origin: Europe, Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Hosta 'Etched Glass' PP 30,748
Item #: 13527
Zones: 3a to 9b
Dormancy: Winter
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $30.00Regular priceUnit price per -
Heuchera 'Pretty Pistachio' PP 29,361
Item #: 13371
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 -
Hosta 'Autumn Frost' PP 23,224
Item #: 9145
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 -
Helleborus x hybridus Winter Delights Violet w/ Pink Edge
Item #: 9929
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 -
Hosta 'Paradigm'
Item #: 3012
Zones: 3a to 8b
Dormancy: Winter
Height: 20" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $29.00Regular priceUnit price per -
Athyrium niponicum 'Wildwood Twist'
Item #: 3890
Zones: 4a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Polygonatum odoratum 'Variegatum'
Item #: 895
Zones: 4a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Part Sun to Shade
Origin: Asia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Astilbe 'Delft Lace' PP 19,839
Item #: 14594
Zones: 3a to 7b, at least
Dormancy: Winter
Height: 26" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Baptisia 'Cinnamon Candles'
Item #: 3948
Zones: 4a to 9b
Dormancy: Winter
Height: 50" 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 -
Heuchera 'Citronelle' PP 17,934
Item #: 7703
Zones: 4a to 8b, at least
Dormancy: Evergreen
Height: 12" 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 -
Brunnera macrophylla 'Jack of Diamonds' PPAF
Item #: 15742
Zones: 3a to 7b
Dormancy: Winter
Height: 14" 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 'Painted Singles'
Item #: 8698
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 -
Hosta 'Beyond Glory' PP 28,784
Item #: 11921
Zones: 3a to 7b
Dormancy: Winter
Height: 16" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $29.00Regular priceUnit price per -
Astilbe chinensis 'Amber Moon' PP 26,028
Item #: 5442
Zones: 3a to 8b
Dormancy: Winter
Height: 30" tall
Culture: Part Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Helleborus x hybridus 'Sandy Shores'
Item #: 13128
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 -
Hosta 'Sun Mouse' PP 30,033
Item #: 6890
Zones: 3a to 8b
Dormancy: Winter
Height: 6" 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 -
Ajuga tenorei 'Princess Nadia' PP 31,028
Item #: 15031
Zones: 4a to 9b
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
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.