9 Frost-Resistant Plants to Transform Your Winter Garden

Selecting plants that can endure freezing temperatures without wilting or dying can be challenging. Use these guidelines to choose the ideal frost-resistant plants for your winter garden this season, and explore some beloved winter varieties you can still plant and enjoy before spring arrives.

Be sure to consult with your local gardening specialists

While many frost-resistant plants thrive in various regions across the country, some may not suit your specific area. "Selecting plants for winter appeal depends heavily on your geographic location," Fornari explains. "Gardening, much like the weather, is highly regional. You might come across claims online that this plant blooms all winter or that one is exceptionally cold-tolerant, but unless the advice is tailored to your region, you could end up dissatisfied."

Clarify your goals for your frost-resistant garden

Perhaps you want to plant root vegetables for harvesting, or maybe you prefer evergreen foliage to prevent bare branches and empty spaces. Alternatively, you might be seeking flowering plants to add color to your winter scenery. Identifying your garden's purpose will guide you in choosing the right plants.

Take steps to safeguard your plants

Even though these plants are frost-resistant, prolonged exposure to extreme cold can still harm them. To shield delicate blooms and foliage, consider wrapping shrubs in burlap or constructing a protective barrier with a plastic tarp to block icy winds. Applying a thick layer of mulch can also help insulate the fragile roots of new plants.

Keep your hose and watering can handy

While you might assume your garden requires minimal care during winter, prolonged dry spells without rain or snow may necessitate watering your plants. "Regardless of what you plant, ensure it receives adequate water weekly if there’s no rainfall," Fornari advises. "A common reason for losing plants placed in fall or winter is neglecting to water them as temperatures drop. Keep in mind that newly purchased plants have root systems limited to the size of their pots, which can dry out rapidly."

1. Ornamental Kale and Cabbage

Ornamental kale and cabbage have become essential for winter gardens, with their vibrant, colorful heads resembling flowers. "Ornamental kale and cabbage are fantastic because their hues intensify as temperatures drop," Fornari notes.

Zones: 2-11

2. Hellebores

Hellebores, also known as Christmas roses, thrive in shaded areas and cooler environments, making them a top pick for Fornari’s winter garden in Cape Cod. They boast dark green foliage throughout the year and produce beautiful blooms as winter draws to a close.

Zones: 6-9

3. Snapdragons

Although snapdragons are often associated with summer, these resilient flowers can withstand cold temperatures and flourish during winter, particularly in garden zones 7 through 11.

Zones: 7-11

4. Lobularia

Lobularia, commonly referred to as alyssum, particularly the Snow Princess variety, features delicate white flowers that endure frosty conditions. Fornari explains, "Lobularia can withstand multiple frosts, only succumbing when temperatures consistently drop below 25 degrees Fahrenheit."

Zones: 5-8

5. Euphorbia

Fornari suggests euphorbia, also known as spurge, for adding winter charm, especially the Ascot Rainbow variety. "Euphorbia features slender leaves in soft yellow and green hues. It remains nearly evergreen in zone 6 or warmer climates, and even if it looks a bit worn by winter, it blooms into stunning green and white variegated flowers in spring."

Zones: 10-11

6. Pansies

Pansies are an excellent option for adding vibrant color to your winter garden. These frost-resistant flowers bloom in spring or fall in northern U.S. regions and throughout the winter in southern areas, according to Fornari.

Zones: 6-10

7. Holly

Holly plants have long been linked to winter holidays for good reason—they retain their glossy green leaves throughout the year and produce iconic red (nonedible) berries during the winter months.

Zones: 5-9

8. Boxwood

For an evergreen addition to your frost-resistant garden, consider the boxwood shrub, known for its glossy green leaves. This low-maintenance plant thrives even in drier climates, making it an excellent choice.

Zones: 5-9

9. Calendula

Commonly referred to as pot marigold, this vibrant flower can withstand cooler temperatures, according to Fornari. While it flourishes best in warmer gardening zones, planting it in fall or spring ensures stunning blooms for a significant portion of the year.

Zones: 9-11