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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Helleborus x hybridus 'Sparkling Diamond'
Item #: 10514
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 -
Polystichum acrostichoides
Item #: 295
Zones: 4a to 9b
Dormancy: Evergreen
Height: 15" 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 -
Paeonia 'Cora Stubbs'
Item #: 4494
Zones: 3a to 8a
Dormancy: Winter
Height: 32" tall
Culture: Sun
Origin: Hybrid
Pot Size: 3 qt. (2.8 L)
Regular price $28.00Regular priceUnit price per$35.00Sale price $28.00Sale -
Sold outIris cristata 'Merle's Ruby'
Item #: 10193
Zones: 3a to 8b
Dormancy: Winter
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 $25.00Regular priceUnit price per -
Monarda 'Electric Neon Purple' PP 34,512
Item #: 17878
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
Next crop available: 10/30/2026Sold out -
Ajuga 'Tropical Toucan'
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 $15.20Regular priceUnit price per$19.00Sale price $15.20
Sale -
Cyclamen hederifolium ssp. crassifolium
Item #: 1991
Zones: 4a to 8b
Dormancy: Spring, Summer
Height: 4" tall
Culture: Part Sun to Light Shade
Origin: Greece
Pot Size: 2.5" pot (7.9 fl. oz/233 ml)
Regular price $23.00Regular priceUnit price per -
Sold outPhlox subulata 'Candy Stripe'
Item #: 1419
Zones: 3a to 9b
Dormancy: Evergreen
Height: 6" 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 'Cloud 9'
Item #: 14274
Zones: 4a to 9b
Dormancy: Winter
Height: 48" 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$25.00Sale price $20.00Sale -
Polygonatum x hybridum 'Giganteum'
Item #: 14255
Zones: 4a to 9b
Dormancy: Winter
Height: 30" tall
Culture: Part Sun to Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20
Sale -
Convallaria majalis 'Albostriata'
Item #: 8913
Zones: 3a to 7b
Dormancy: Winter
Height: 9" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $31.00Regular priceUnit price per -
Cystopteris protrusa
Item #: 9481
Zones: 4a to 9a, at least
Dormancy: Winter
Height: 12" 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 per -
Napaea dioica
Item #: 3738
Zones: 3a to 8b
Dormancy: Winter
Height: 84" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
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 $27.00Regular priceUnit price per -
Hosta 'Fire and Ice'
Item #: 2754
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 $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Helleborus x hybridus Winter Delights Pink w/ Red Blotch
Item #: 13768
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 -
Helleborus x hybridus 'Apricot Blush'
Item #: 4493
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 -
Baptisia 'Lighthouse'
Item #: 11837
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 72" 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 -
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 $21.00Regular priceUnit price per -
Hosta 'Angel Falls' PP 28,785
Item #: 11923
Zones: 3a to 7b
Dormancy: Winter
Height: 16" tall
Culture: Light Shade
Origin: Hybrid
Pot Size: 2 qt. (1.9 L)
Regular price $23.20Regular priceUnit price per$29.00Sale price $23.20Sale -
Sold outPaeonia 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 $75.00Regular priceUnit price per -
Sold outAmorpha 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 $19.20Regular priceUnit price per$24.00Sale price $19.20Next crop available: 11/13/2026Sold out -
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 -
Acorus calamus 'Argenteostriatus'
Item #: 767
Zones: 4a to 9b
Dormancy: Winter
Height: 36" tall
Culture: Sun to Part Sun
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $19.20Regular priceUnit price per$24.00Sale price $19.20Sale
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.