A hollowed area and growth rings are visible on a cut section of a 250-year-old bur oak tree during its removal on Wednesday, ...

When the bark peels off, so does the cambium. The supply line to the roots is lost. The roots die because the phloem has been ...

Oak trees have been around for more than 50 million years, with individual trees easily living 1,000 years. One of the oldest oak trees in the U.S. is believed to be at least 2,624 years old. The ...

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 ...