Orange trees are low-maintenance fruit trees and pruning is not overly complicated but is important to maintain the health ...

Matt Mattia used both hands to flip through the branch at his eye level, studying each side of every leaf as sunlight filtered from above. “Just healthy leaves,” he said, noting the dark green color.

A group of them called carotenoids produce yellow and orange hues. Some trees also produce red and purple pigments called anthocyanins. Each season is different, depending on a variety of factors. A ...