The Texas live oak is a popular evergreen tree known for its branches and limbs that over time will spread horizontally a great distance from the trunk. Though similar to the southern live oak, it is more drought resistant and cold-hardy. Its leaves are a dark green, glossy and firm, but are smaller than that of the Southern live oak. Its acorns are more elongated and spindle shaped, narrower at the base. These trees will live for hundreds of years and will reach a height of about 20 to 40 feet at maturity, growing around 1 to 2 feet annually. Fun fact, The largest known Texas live oak grows in Real County, Texas.