These small conifer trees for birds provide food and refuge in all seasons. These varieties are perfect for small landscapes.

Chestnuts roasting on an open fire.” Most likely you either sang or listened to this song over the holidays. This song is a ...

Taken from a tree in Norway, this stained tree sample shows a blue ring from 1902. (Credit: Pawel Matulewski and Liliana Siekacz) Human skin isn't the only thing that can change color after facing the ...

These eruptions likely cast a volcanic winter over the northern hemisphere, impacting the trees at Mount Iškoras in Norway, where the study was conducted. "Blue rings look like unfinished growth ...

Overall, only 2.1% of the pine trees' rings and 1.3% of the juniper shrubs' rings were blue; the cells which hadn't lignified properly were mainly found at the end of growth rings, in latewood ...

Blue growth rings found in woody plant stems represent years when cells did not lignify properly because of summers too cold for growth When the going gets cold, even tough trees struggle with ...

In Norway, scientists have found blue rings in trees that hint at how volcanic eruptions disrupted growth throughout history. Credits: Credits: Havardtl, CC BY 4.0, via Wikimedia Commons. Scientists ...