Every autumn we revel in the beauty of the fall colors. The mixture of red, purple, orange and yellow is the result of chemical processes that take place in the tree as the seasons change from summer ...

But how do you find them, especially since you’re going to buy the plants during the growing season, when they don’t show a hint of their autumn leaf colors? Do a little homework first.

The physical signs of fall begin when the leaves change color and start to fall from the trees. This transformation is triggered by shorter daylight hours and cooler temperatures. The process of ...

The compounds vary by species and determine the color of the tree’s autumn foliage—so a species like the ginkgo, which turns yellow in fall, won’t turn red. But climate volatility can ...