Cold-hardy plants are species that can survive and thrive in low temperatures and harsh winter conditions. These plants have adapted to withstand frost, snow, and freezing temperatures, making them ideal for gardens in colder climates. Examples include evergreens, perennials, and certain shrubs that can endure winter's chill. These plants often have features like thicker leaves, deeper root systems, and protective coatings that help them retain moisture and resist damage. Gardeners often choose cold-hardy varieties to ensure their landscapes remain vibrant and healthy throughout the winter months, providing beauty and resilience in challenging weather.