Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth don't lignify properly, creating blue rings that appear when wood samples ...

Which blue Christmas trees are best? Not only do artificial Christmas trees save the headache of caring for a real tree, they also provide you the opportunity to make your tree more uniquely yours.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. In the frigid landscapes of northern Norway, an unusual phenomenon ...

If you haven’t put up your holiday decor by now, it is officially time to do so. The countdown to Christmas has begun, and this year, experts and TikTokers agree that blue Christmas trees (and blue ...

Wooster residents have joined an international movement that uses painted blue trees to spark conversations about mental health and suicide prevention. Wooster is the first location in Ohio to ...

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 growing ...