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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Sold outHosta 'Silly String' PP 32,127
Item #: 17103
Zones: 3a to 8b
Dormancy: Winter
Height: 14" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per
Next crop available: 01/29/2027Sold out -
Lobelia cardinalis 'Towering Inferno'
Item #: 16741
Zones: 3a to 9b
Dormancy: Evergreen
Height: 84" 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 -
Dalea purpurea
Item #: 13285
Zones: 3a to 8b
Dormancy: Winter
Height: 24" 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 -
Sold outHosta 'Fingernails'
Item #: 11399
Zones: 3a to 8b
Dormancy: Winter
Height: 1" 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 -
Sold outHosta 'Vanilla Bean'
Item #: 10527
Zones: 3a to 8b
Dormancy: Winter
Height: 4" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $32.00Regular priceUnit price per -
Phlox divaricata 'Blue Ribbons' PP 34,928
Item #: 13029
Zones: 3a to 8a
Dormancy: Evergreen
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 $21.00Regular priceUnit price per -
Amorpha canescens Arkansas form
Item #: 9810
Zones: 3a to 8b, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular 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 $29.00Regular priceUnit price per -
Hosta 'Dressed to Kill'
Item #: 13039
Zones: 3a to 8b
Dormancy: Winter
Height: 12" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Helleborus niger 'Snowbells'
Item #: 15744
Zones: 3a to 7b
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Sold outChelone glabra 'Black Ace'
Item #: 3746
Zones: 3a to 8b
Dormancy: Winter
Height: 72" tall
Culture: Sun to Part Sun
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Selaginella borealis
Item #: 5120
Zones: 3a to 8b, at least
Dormancy: Evergreen
Height: 2" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price per -
Uvularia grandiflora
Item #: 1754
Zones: 3a to 9b
Dormancy: Winter
Height: 18" 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 -
Athyrium 'Ocean's Fury' PP 20,126
Item #: 7817
Zones: 3a to 9b
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Sold outLychnis 'Hill Grounds'
Item #: 17021
Zones: 3a to 10b
Dormancy: Evergreen
Height: 24" tall
Culture: Sun to Part Sun
Origin: Europe, Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Sold outHosta 'Mouse Trap'
Item #: 9536
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 -
Baptisia minor 'Blue Bonnet'
Item #: 3716
Zones: 3a to 9b
Dormancy: Winter
Height: 30" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $27.00Regular priceUnit price per -
Sold outHelleborus niger 'Mont Blanc'
Item #: 16513
Zones: 3a to 7b
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $29.00Regular priceUnit price per -
Sold outIris cristata 'Eco Orchid Giant'
Item #: 17856
Zones: 3a to 8b
Dormancy: Winter
Height: 5" tall
Culture: Part Sun to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Hosta 'Miss America' PP 32,068
Item #: 16522
Zones: 3a to 8b
Dormancy: Winter
Height: 19" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price per -
Mitchella repens 'Danny'
Item #: 13027
Zones: 3a to 9b
Dormancy: Evergreen
Height: 1" tall
Culture: Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Sold outLiatris pycnostachya
Item #: 3798
Zones: 3a to 8b
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Hosta 'You're So Vein'
Item #: 9535
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 $30.00Regular priceUnit price per -
Hemerocallis minor 'Mongolian Gold'
Item #: 11888
Zones: 3a to 8b, at least
Dormancy: Winter
Height: 30" tall
Culture: Sun to Part Sun
Origin: Mongolia
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $39.00Regular priceUnit price per
More Information About Plants for Zone 3
Zone 3a and Zone 3b Plants
Many of the perennial plants in our catalog are well-suited for Zones 3a or 3b. Some of our favorite species of athyrium, baptisia, brunnera, cypripedium, dianthus, hemerocallis, hosta, iris, phlox, pulmonaria, and tiarella can survive Zone 3 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 3a annual minimum winter temperatures should be -40 to -35 °F (-40 to -37.2 °C). Zone 3b annual minimum temperatures should be -35 to -30 °F (-37.2 to -34.4 °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.