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 ...

Waiting until the leaves drop in fall is a rule of thumb for pruning shade trees, mainly because you can see bare limbs better, and the job is less “messy” without leaves attached to the cut branches.

Many coast live oak (Quercus agrifolia) trees are showing unusual browning in their canopies in the last month or two. If you look carefully, you may see small, crescent-shaped galls forming on the ...

The fallen leaves and cool temperatures are all signs it’s safe to prune oak trees in Michigan. Oak trees can be infected by the oak wilt fungus if they’re pruned anytime between April 15 through July ...

For those of you who aren’t aware that live oak trees drop their leaves every year despite the fact that we describe them as evergreen, look at the ground now. If you have live oak trees, they have ...

Few average Joes can correctly identify every species of oak growing in North America. That’s the kind of Final Jeopardy-level knowledge typically reserved for foresters, wildlife biologists, and very ...

If there's a swampy corner in your backyard, the swamp chestnut oak (Quercus michauxii) is a tree worth considering. It is tall, does exceptionally well in drenched conditions, and will turn that ...

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 ...

The leaves are down, winter is upon us, and that means it’s prime time for pruning oak trees, which can be infected by the oak wilt fungus if they’re pruned during the high-risk period mid-March ...