The mostly evergreen plants in home gardens fall into two main groups: broadleaf and needled. Broadleaf evergreens like boxwood, holly, and rhododendron keep wide, flat leaves through winter. Needled evergreens like juniper, yew, and arborvitae hold thin needle-like or scale-like foliage year-round. Both types give your yard color and structure when deciduous plants go bare.
Here's something the plant tags at nurseries don't always tell you. A shrub labeled "evergreen" in Georgia might drop half its leaves during a Minnesota winter. I learned this the hard way with my Southern Wax Myrtle. The nursery sold it as an evergreen. It lost every leaf during a cold snap below -10°F (-23°C). It came back in spring, but that bare winter look was not what I signed up for when I bought a plant to keep my yard green through January.
Many plants in this gray zone count as semi-evergreen plants. They hold their leaves in mild winters but shed them when temperatures drop past their comfort zone. Abelia, certain azalea varieties, and privet all behave this way. In zones 7 through 9 they stay fully green. In zones 5 and 6 they lose some or all foliage depending on how harsh the winter gets. Your hardiness zone decides if these plants keep or drop their leaves.
The biology behind evergreen plants trips up a lot of new gardeners. Evergreens do shed leaves, just not all at once. They drop older interior foliage through the year while growing new leaves on branch tips. You'll notice brown needles falling from inside a healthy pine tree every fall. This gradual shedding is normal and doesn't mean the plant is sick or dying.
Penn State Extension breaks evergreens into four clear categories based on leaf type and plant form. Knowing these groups helps you pick the right plant for each spot in your garden.
Narrowleaf shrubs like juniper and yew tend to be the toughest group. They hold their foliage in extreme cold, handle wind exposure, and rarely suffer winter burn. Broadleaf shrubs are pickier. Rhododendron curls its leaves in freezing weather to survive. Boxwood can get bronze winter discoloration in windy spots above zone 5.
Before you buy plants that stay green year-round, check the tag for its lowest hardiness zone. Compare that number to yours. If the plant is rated for zone 6 and you live in zone 5, expect it to act more like a semi-evergreen. Pick plants rated at least one zone colder than yours for guaranteed year-round green color.
Read the full article: Best Evergreen Shrubs for Your Garden
