Most dogwood trees also bloom before their leaves emerge. In late winter, tight buds slowly unfurl to reveal beautiful flowers with white or pink bracts (leaf-like structures that look like petals) (figure B). They too are great for small properties or as understory trees.Late-winter leaf buds
"It's far more common for plants to produce leaf buds first, and I urge you to watch them over a period of several days just to witness the process," says James. "Because in the process, you'll gain a better understanding of how plants grow."
Just as important, you get a better idea of the meaning of the terms bud swell or bud break. For example, many garden books suggest you prune certain deciduous plants just as the leaf buds begin to swell, or that you begin preventive spraying programs just as the leaf buds break.