Plant Profile: Quercus stellata

Post Oak is a deciduous tree that typically reaches heights of 40 to 50 feet. It thrives in the less fertile soils of the Piedmont region and can also be found in mountainous areas up to 2,500 feet in elevation. This species is indigenous to the central and eastern parts of the United States. The tree exhibits a dense, rounded shape, with its upper branches and stems often appearing twisted and gnarled.

The leaves are arranged alternately and feature five lobes, with a hairy, pale underside. Notably, the two central lobes are square-shaped, giving the leaves a distinctive cross-like appearance. Young Post Oaks have scaly bark, which matures into a ridged texture marked by horizontal breaks that are typical of the species. In the spring, the tree produces yellow-green cylindrical male flowers alongside reddish female spikes. The acorns, measuring between 1/2 to 2/3 inches, are topped with a warty cap that covers roughly one-third to one-half of the nut, requiring a full growing season to mature.

Post Oak is adaptable to various soil conditions but thrives best in acidic, well-drained soils under full sunlight. It demonstrates resilience against drought, fire, and many diseases, making it suitable for use as a shade tree in lawns, in naturalized settings, or along streets.

While there are no significant pest or disease threats, the tree can occasionally be affected by Chestnut blight and is vulnerable to oak wilt.

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