Volcanic eruptions and cold summers leave lasting marks in the wood of northern trees, unlocking the secrets of past climate extremes.

As forests continue to be cleared and forested landscapes degraded by human activity, their loss can significantly affect the ...

Identifying a dominant leader and cutting away any competing leaders when a tree is young will allow it to grow more robustly ...

Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth ...

The Malus coronaria learned to fight frost by blooming two or three weeks later than the trees that produce cultivated ...

For more than 150 years, scientists have debated whether Prototaxites—which stood roughly 24 feet tall and 3 feet wide—were an early lichen or fungus, like a “giant mushroom” ...

While its large brilliant flowers attracted early horticultural attention, this summertime stunner’s path to being a ...

Now known as Prometheus, the tree was found to be nearly 5,000 years old. That means Prometheus came into existence around the time humans were exiting the Stone Age and beginning to work with bronze.