Paulownia flowers are usually set before leaf emergence so they really stand out against a neutral or evergreen background. With its rapid growth rate, the princess-tree can reach 50 feet in ...

So chlorophyll equals green leaves, and carotenoids equals yellow and orange leaves. HANSON: Yes. And for some trees, right here, this is where the colors stop.

Alongside the pretty build itself, the instruction booklet provides some nice background information on the tree. It states that the Japanese red maple is native to Japan, China, and Korea, and ...

Treehugger/ Alexandra Cristina Nakamura. Besides its branches, roots, and leaves, a mature tree also grows another important structure—the flower (or cone, in the case of evergreens).

What Brilliant Fall Leaf Colors Tell Us about Tree Health and Climate. A tree’s fall palette offers a glimpse at its health and the weather it has experienced in a given year.

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 ...

Leaf senescence is when the normal green leaves of many deciduous trees and shrubs take on shades of yellow, orange, red, purple, and brown in the autumn. For plants to grow, they need sunlight ...