Q: I planted three Flowering Yoshino Cherry trees from pots about four years ago. Watered and fertilized the same for all these years. Two of the trees are doing okay. For some reason, one of the ...

I came across this black cherry tree while hiking on Mt. Greylock in November. Note the flaky gray bark and the huge “knot” that is an indication of an infection of the black knot fungus. No other ...

Soon, a three-year, $113 million project will launch with the mission to restore the sinking sea walls along the Tidal Basin and the Potomac River through West Potomac Park. Part of this project will ...