What shape is a tree? For most people, it’s like a lollipop or a feather duster: a single trunk topped by a green bunch of branches and leaves. “Not all trees are like that,” said Sharon Yiesla, plant ...

The trunk might be the most neglected part of a tree. Leaves get the most attention, followed by the roots. But a trunk should not be taken for granted as it must be sturdy and healthy for the rest of ...

Q: I have read that African sumacs are fast growers. The African sumacs here seem to be at a stand still. I have had two in my backyard since April. They are alive but the canopy and trunk just seem ...