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?

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 lime and avocado tree. Do I clear the sod out from underneath the trees and, if so, how much to remove? Answer: Many gardeners may remember the spaces of clear soil under citrus ...