This winter many urban ash trees are covered with unusual growths called ash staminate flower gall. An infected tree's twigs are covered with crumbly brown or black growths that look like flowers.

As leaves drop in autumn, the beautiful structure of trees is revealed. When trees are bare, we also become more aware of broken or dead limbs and other problems that may be afflicting the trees. As I ...

There’s a lot to love about mountain ash, a delightful native tree that fits easily into urban and suburban landscapes. It can be grown as a small single-trunk tree or with multiple trunks, giving it ...

Q : The camellia pictured (see reader's photo) was planted approximately 18 years ago, along with another about 10 feet away. We kept them appropriately 6 feet high. They bloomed beautifully until the ...