A genuinely resilient specialist for poor soils, post oak is confirmed both deer resistant and highly drought tolerant, serving as a documented larval host for the Northern Hairstreak and Horace's Duskywing butterflies - though it's worth knowing this species is flagged as a problem for horses.
Species Overview
Quercus stellata, or post oak, is a deciduous tree native to central and eastern North America, typically growing 40 to 50 feet tall with a dense, rounded to irregular crown of often twisted, gnarled branches. Its distinctive leaves have two prominent, roughly square middle lobes that give the foliage an overall cross-like (cruciform) appearance.
Application
Poor, dry, sandy, or rocky soil restoration - the most common oak throughout much of its range on such sites
Deer-pressured sites
Larval host habitat for the Northern Hairstreak and Horace's Duskywing
Urban street tree plantings on drier sites - requires less pruning due to slower growth
Growing Conditions / Specification Data
Light: Full Sun to Part Shade
Soil/Moisture Tolerance: Dry to moist, rocky or sandy, acidic soils; also tolerates soggy sites
Drought Tolerance: High
Flood Tolerance: Low - A dry-ridge oak, consistent with this species' already-confirmed sun-loving, dry-site profile.
IMPORTANT: flagged as a problem for horses. Roots are extremely sensitive to disturbance - site permanently while young; slow-growing but long-lived, and in the white oak group, less susceptible to oak wilt than red oak group species.
