The Pin Oak has an interesting, pyramidal shape that features horizontal middle branches, upright top branches and lower branches that turn downward.
The tree can grow up to 100 feet; however, most grow 60-70 feet. The Pin Oak is a dense shade tree with a spreading canopy of 25-40 feet. It’s a fast growing tree, adding about 24 inches a year.
Flowers emerge as yellowish-green catkins more than five inches long. In April or May, these will transition to reddish-brown acorns that are round and thinly capped.
Its dark green leaves are broad, three to six inches long with five or seven lobes. These will transform into blazing scarlet and bronze leaves in the fall.
The Pin Oak tree needs full exposure to the sun and should be planted in moist, acidic, loamy, sandy or clay, well-drained soil. It cannot tolerate alkaline soil. Hardiness Zone: 4-8.