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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Spigelia marilandica 'Ragin Cajun'
Item #: 8718
Zones: 5a to 9b
Dormancy: Winter
Height: 20" tall
Culture: Sun to Light Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price perNext crop available: 07/12/2024Sold out -
Lavandula x intermedia 'Phenomenal' PP 24,193
Item #: 6216
Zones: 4a to 7b, at least
Dormancy: Evergreen
Height: 30" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
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Arisaema sikokianum
Item #: 1850
Zones: 4a to 8b
Dormancy: Winter, Fall
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: Bare Root / 3.5" pot (24 fl. oz/0.7 L)
Regular price $38.00Regular priceUnit price perSold out -
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Baptisia 'Lunar Eclipse' PP 25,875
Item #: 6077
Zones: 4a to 9b, at least
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 perNext crop available: 04/26/2024Sold out -
Aquilegia chrysantha 'Denver Gold'
Item #: 12387
Zones: 3a to 8b
Dormancy: Evergreen
Height: 36" tall
Culture: Sun to Light Shade
Origin: Mexico, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.00Regular priceUnit price per -
Ajuga tenorei 'Blueberry Muffin' PP 22,092
Item #: 14897
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 perNext crop available: 06/14/2024Sold out -
Agastache 'Rosie Posie' PP 25,857
Item #: 10636
Zones: 5a to 8b
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 -
Perovskia atriplicifolia 'Blue Jean Baby' PP 29,281
Item #: 13502
Zones: 4a to 8b, possibly colder
Dormancy: Winter
Height: 34" tall
Culture: Sun
Origin: Afghanistan, China, Himalayan Mountains, Pakistan, Turkey
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Allium 'Millenium'
Item #: 5466
Zones: 5a to 8b, at least
Dormancy: Winter
Height: 12" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
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Helleborus x hybridus 'Sun Flare'
Item #: 14317
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 -
Clematis 'Stand by Me' PP 30,556
Item #: 13500
Zones: 3b to 8b
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
Baptisia 'Lemon Meringue' PP 24,280
Item #: 9453
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 per -
Hibiscus 'Airbrush Effect' PP 29,295
Item #: 13757
Zones: 4a to 9b
Dormancy: Winter
Height: 48" 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 -
Clematis 'Sapphire Indigo' PP 17,012
Item #: 8947
Zones: 4a to 8b
Dormancy: Winter
Height: 18" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $28.00Regular priceUnit price per -
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Ligularia japonica 'Chinese Dragon'
Item #: 9018
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 36" tall
Culture: Part Sun to Light Shade
Origin: China
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $26.00Regular priceUnit price perNext crop available: 06/14/2024Sold out -
Hibiscus 'Perfect Storm' PP 27,880
Item #: 11951
Zones: 4a to 9b
Dormancy: Winter
Height: 36" 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 -
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Buddleia 'Evil Ways'
Item #: 7905
Zones: 5a to 9b
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $29.00Regular priceUnit price perNext crop available: 05/31/2024Sold out -
Sarracenia leucophylla 'Tarnok'
Item #: 4339
Zones: 5a to 9b
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 $32.00Regular priceUnit price per -
Baptisia 'Grape Taffy' PP 26,587
Item #: 11293
Zones: 4a to 9b
Dormancy: Winter
Height: 30" 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 -
Achillea 'Sassy Summer Taffy' PP 31,755
Item #: 13575
Zones: 5a to 8b, possibly much colder
Dormancy: Winter
Height: 32" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $20.00Regular priceUnit price per -
Schizachyrium scoparium 'Twilight Zone' PP 27,432
Item #: 13509
Zones: 3a to 8b
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 -
Agastache 'Blue Fortune'
Item #: 3209
Zones: 3a 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 $20.00Regular priceUnit price per -
Hosta 'Stained Glass'
Item #: 4232
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 -
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 $68.00Regular priceUnit price per
More Information About Plants for Zone 5
Zone 5a and Zone 5b Plants
Many of the perennial plants in our catalog are well-suited for Zones 5a or 5b. Some of our favorite species of achillea, agastache, ajuga, arum, aster, athyrium, baptisia, buddleia, carex, chrysanthemum, clematis, cylcamen, cypripedium, delosperma, dianthus, echinacea, epimedium, helleborus, heuchera, hibiscus, hosta, iris, lycoris, monarda, paeonia, panicum, polygonatum, sarracenia, sedum, and more can survive Zone 5 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 5a annual minimum winter temperatures should be -20 to -15 °F (-28.9 to -26.1 °C). Zone 5b annual minimum temperatures should be -15 to -10 °F (-26.1 to -23.3 °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.