Zone 3 plants can withstand cold temperatures of -40 to -30°F. The upper Midwest states hold most of Zone 3, such as northern parts of Montana, North Dakota, Minnesota, Wisconsin, and Maine.

Hardiness Zone 4 comprises some of the coldest and northernmost areas of the continental United States. It stretches in a crescent shape from northern Idaho to northern New York and New England, and from the Canadian border south into parts of the Colorado Rockies.

Hardy to winter temperatures of -20°F to -10°F. Discover cold-hardy shrubs, perennials, and beautiful plants for northern landscapes.

Hardy to winter temperatures of -10°F to 0°F. Explore hardy flowering shrubs, perennials, and landscape plants for year-round interest.

Hardy to winter temperatures of 0°F to 10°F. Shop flowering shrubs, colorful perennials, and versatile plants for beautiful gardens.

Hardy to winter temperatures of 10°F to 20°F. Discover flowering shrubs, evergreen plants, and perennials suited to mild southern winters.

Hardy to winter temperatures of 20°F to 30°F. Explore colorful flowering shrubs, lush evergreens, and plants for warm-climate landscapes.

Hardy to winter temperatures of 30°F to 40°F. Shop tropical-inspired plants, vibrant flowering shrubs, and lush greenery for warm gardens.

Hardy to winter temperatures of 40°F to 50°F. Discover tropical plants, colorful foliage, and beautiful selections for frost-free gardens.