The glossy green leaves of the flowering crabapple tree turn yellow or red in the fall, providing a splash of color to the landscape. In the spring, the tree is covered in clusters of white ...

Spring officially starts on March 20, but warm weather and blooming flowers usually come early in Arizona. Here's how you ...

Scientists discovered that the red stigmas in wind-pollinated trees accumulate anthocyanin, the same compounds that are revealed in autumn leaves after green chlorophyll production slows down and ...