Beech trees dominate most forests in the D.C. area. Now, they’re under attack by a new pest that could unravel ecosystems.

Wealthier neighborhoods have more trees, but D.C. is doing a good job closing the tree gap according to a new analysis.

A map of the city’s open boxes makes it simpler to request a tree be planted there.

Casey Trees will plant more than 650 new trees in the District between March and May.

In an effort to boost D.C.’s tree canopy from 35 to 40 percent by 2032.

Happy Arbor Day! In commemoration of dendrophiles’ favorite day of the year, the District received a report card on how it measures up as a steward of the local tree canopy, and the results are a little disappointing.