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10 popular trees now flagged as structural threats across the US

Homeowners across America plant popular shade trees for beauty and longevity, unaware that hidden root systems often threaten ...
seattlepi.com

Garden Basics: Tree roots are shallow but extend beyond the branches

When we think of the shape of a tree, usually we are thinking only of its canopy. A tree's canopy is the form its branches make -- some spread wide, some are rounded, some cone-shaped. When we think ...