Hardiness Zone 4 - Plants
USDA Hardiness Zone 4 has average annual minimum winter temperatures of -30°F to -20°F (-34.4°C to -28.9°C). Despite the cold winters, gardeners can choose from an impressive range of trees, shrubs, perennials, and annuals when plants are selected for reliable winter hardiness.
What grows well in USDA Zone 4?
Zone 4 supports many classic cold-climate plants, including deciduous trees, conifers, flowering shrubs, hardy perennials, spring bulbs, ornamental grasses, and summer annuals.
Native plants suited to your region can be especially valuable because they are adapted to local conditions and may support native pollinators, birds, butterflies, and other wildlife.
Best trees and shrubs for Zone 4
Trees and shrubs provide the permanent framework of a cold-climate garden, adding shade, screening, flowers, fruit, fall color, bark, and winter structure.
- Trees: Red Maple (Acer rubrum), Eastern White Pine (Pinus strobus), American Mountain Ash (Sorbus americana), Japanese White Birch (Betula platyphylla), and suitably hardy Apple Trees.
- Shrubs: Bottlebrush Buckeye (Aesculus parviflora), Redtwig Dogwood (Cornus sericea), Black Chokeberry (Aronia melanocarpa), Panicle Hydrangeas, Viburnums, and Winterberry Holly.
Best perennials for Zone 4
Cold-hardy perennials can return year after year, creating color and texture from spring through fall.
Reliable choices include Lupines, Coneflowers, Coral Bells, Russian Sage, Peonies, Hostas, and Daylilies, depending on species and cultivar.
Add summer color with annuals
Annuals do not need to survive Zone 4 winters, making them an easy way to add bold seasonal color once frost danger has passed.
Cosmos (Cosmos bipinnatus), Nasturtium (Tropaeolum majus), and Sunflower (Helianthus annuus) can provide months of flowers during the warmer part of the year.
Look beyond hardiness before planting
A Zone 4 rating indicates that a plant should tolerate typical winter minimum temperatures, but it does not tell you whether the plant will thrive in your sunlight, soil, moisture, wind exposure, summer heat, or local microclimate.
Check the hardiness of individual species and cultivars carefully, particularly with broad genera such as hydrangeas, viburnums, lupines, and coral bells, whose cold tolerance can vary.
