After trees lose their leaves in the fall, it's much easier to see and remove problem branches. "When we're pruning in the winter, it's a lot more efficient," Passo said.

When you've always known deciduous trees to drop their leaves in winter, seeing one that hasn't can be unsettling. Here's why trees may hold onto their leaves.

Outdoors column: Why some trees hold their leaves through winter remains a mystery Witch hazel holds on to its leaves in Feb. in Lake County. (Photo by Steven D. Bailey/For the Lake County News-Sun) ...

In temperate forests, the biomass-building benefits of warmer growing seasons are offset by damaging variability in winter ...

Arborists are encouraging homeowners to prepare their trees for winter storms, heavy snow, and ice, which can damage trees if they have weak structures. Jason Parker, an arborist at the Davey Tree ...

One way trees endure winter is through adaptations in their bark. With the deciduous leaves long gone, the winter forest has been laid bare, giving us the perfect conditions to attune ourselves to the ...

Winter, the dormant season for most plants in the Chicago area, presents unique opportunities for restoration work targeting larger, woody invasive species at suburban forest preserves.

Families and students explore the lives of winter trees in the Ecosystem Preserve. The snow-covered pond outside Jeanette Henderson’s office in Calvin College’s Bunker Interpretive Center is ...

A few trees, like the beech and some oak species, hold onto their leaves in the winter. Some shrubs, like winterberry, retain fruit or berries in the winter. Look for thorns.