In order to grow properly, trees need an adequate period of warmth during their growing seasons; otherwise, the cell walls [… ...

Here in the UK, ancient oaks and other trees are an enduring symbol of the British landscape, offering shelter and support to ...

J. conferta ‘Blue Pacific’ – Also called Blue Pacific Shore, this slow-growing, heat-tolerant juniper has handsome blue-green ...

Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the weather of the past by looking at ...

Blue growth rings in woody plant stems indicate years when cells failed to lignify properly due to summers that were too cold ...

Learn more about these signs of summertime cold, perhaps tied to volcanic activity in 1877 and 1902.

Scientists studying tree rings in northern Norway have linked ‘blue’ rings, caused by cold summers, to volcanic eruptions ...