Q: I have a house in Houston. Does blooming of tropical trees like Bauhinia, Erythrina and Tabebuia depend on their age or size? I plant these trees in the ground. They freeze. They come back but they ...

Why do trees have bark? Julien, age 6, Melbourne. This is a great question, Julien. We are so familiar with bark on trees, that most of us just take it for granted. But bark is one of the most complex ...

Dear Neil: This oak tree is located on our church property. Is the old bark falling off due to its age, or is there a disease? Have a question you’d like Neil to consider? Mail it to him in care of ...

Winter is the perfect time to prune oak trees. Oak trees are special for many reasons: they’re Iowa’s state tree, they’re important to our ecosystem and — they shouldn’t be pruned during the spring ...