And, "It can cause a decline in fruit quality over time," Luke said. Also known as ailanthus, tree of heaven is a deciduous tree native to China and Taiwan. It was brought to the United States in ...

The tree is called Ailanthus, but also has the moniker of "tree of paradise". Ailanthus is infamous for its ability to grow quickly, to the detriment of surrounding flora. In its native China ...

Still, it has one decided advantage over the Colorado blue spruce, our official state tree since 1939: No bugs can kill it. In fact, it's impossible to kill. Best Of Denver® ...