Take a 2-minute flyover of BiodiversiTREE, a 20,000-tree forest experiment at the Smithsonian Environmental Research Center on Chesapeake Bay. The forest has 16 different tree species, so scientists ...

Pie cherries at O'Brien Garden and Trees. (Riley Board/KDLL) Michael O’Brien likes a challenge. That’s why O’Brien Garden and Trees in Nikiski is what he calls an experimental farm — he tries out ...

MENOMONEE FALLS – The perfectly spaced rows of trees between the old Boundary Road Landfill and Boundary Road aren't there to keep your eyes off of the land, or to pretty up the space, though they do ...

“This here is a fir that would be classified as a Charlie Brown tree,” Greg Williams declared, of a spare little cutting of balsam fir. “But prune it severely the first year and you can make a good ...

A fossil of a 350-million-year-old tree was discovered with an unusually bulging top, created by hundreds of near-perfectly preserved leaves surrounding its trunk, that appears straight out of a Dr.

CLEVELAND, Ohio – Cleveland announced earlier this year that it was seeking a firm to assess the health of 90,000 trees lining city streets. The comprehenisve 12-month survey, that was expected to ...

Fall leaf color and climate change, urban trees, heat islands and downtown honeybees. Why do leaves change color in the fall, and how will climate change affect that rainbow of color? Plus, urban ...