Carotenoids, which produce yellow and orange hues, are always present in leaves but are masked by chlorophyll during the growing season. When chlorophyll degrades, these colors become visible.

Yellow leaves on plants are one of the most common signals a houseplant sends when something isn’t right. The good news is ...

Leaves change colors in the fall due to the changes in the length of the day and the cooling of temperatures, signaling the leaves that it's time to get ready for the winter.

During the growing season, chlorophyll is abundant in leaves, giving them their signature green color. As chlorophyll breaks down during the fall, the leaves unveil the pigments hiding underneath.

By spring, the leaves on trees grow and assume the color green, and by autumn, they change to sometimes brilliantly warm colors and fall. But why do they do that? Every fall season, nature lovers ...

Just like all species have a life cycle, so do trees and the leaves that make up a tree, but why during a certain time of the year do these leaves change color and then eventually fall off?

Fall is here and leaves across Wisconsin are starting to turn hues of orange, yellow and red. But you might be wondering — why do some leaves change color in the fall? To get to the bottom of ...

Yellow leaves can be a sign of improper watering, insufficient light, insect or disease problems, nutrient deficiencies and sick roots, just to name a few. There are also situations where yellow ...

Why do leaves fall off trees in the autumn? 02:44 MINNEAPOLIS — The latest map shows fall colors are just starting to emerge across parts of northern and southern Minnesota. That means it's only ...

Fall foliage progress in Hudson Valley for week of Sept. 26-Oct. 1. According to the most recent report on the website, the Lower Hudson Valley is now in the yellow, meaning many trees are ...