Scientists are investigating the reasons some plants still wear last season’s tattered clothes.

Strolling in my neighborhood the other day, I saw two trees with autumn foliage that I thought would have made the most compelling combination had they been planted side by side. One was a ginkgo tree ...

Gold in a branch on the sunny side of a tree. Scarlet in a shrub. The first flashes of color mean that fall is coming soon. Leaf color is a sign that trees are preparing for winter by entering the ...