A: As a tree gets older, the woody tissue of the trunk and limbs divides into two zones: heartwood and sapwood. Heartwood cells usually contain tannins or other substances that make it dark colored ...

Question: We have a large 60+ foot mulberry tree in our backyard that is located by our pond. This is the first year I have seen these dark streaks on the bark of the tree. Should I have concerns?

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 ...

Tree trunks are more than just wood—they’re living records of everything a tree’s been through. From growth spurts to natural disasters, tree rings and dark lines inside trunks reveal secrets that are ...

With trees, as with elephants and in swimming, trunks are important. They’re part of trees’ beauty, strength, majesty, and mystique. We have things to discuss. Like people, trunks come in all shapes ...

Q: My dad helped me plant a couple of young apple trees in my backyard last weekend and so far, so good. After we finished I said the only thing I had left to do was paint the trunks white. He looked ...