Quercus albaQuercus alba

  • BOTANICAL NAME: Quercus alba
  • PRONUNCIATION: KWER-kus AL-ba
  • COMMON NAME: White Oak
  • FAMILY: Fagaceae
  • NATIVITY: Eastern to midwestern United States
  • GROWTH HABIT: Pyramidal in youth, becoming rounded with horizontal branches; 50'-80' (100') tall. Slow to medium growth rate, slower with great age.
  • HARDINESS: Zone 3-9
  • CULTURE: Full sun in deep, moist, rich, well-drained acid soils.
  • SUCCESSIONAL STATUS:  Climax
  • FACULTATIVE STATUS:  Facultative Upland
  • LANDSCAPE USE: Not commonly planted as a landscape tree; usually taprooted and is therefore difficult to transplant. Mildly sensitive to environmental changes during site development.
  • FOLIAGE: Alternate, simple, 4"-9" long, 5-9 rounded, entire lobes. Bright-green above, gray-green monoecious, male in catkins, female in solitary to many-flowered spikes in leaf axils.
  • BUDS: Red-brown to brown, 1/8" - 1/4" long.
  • BARK: Light-gray in color, ridged and furrowed.
  • FRUIT: Nut (acorn) 1/2" - 1" long with involucre (cup) only covering 1/4 of nut.
  • PROPAGATION: Seed.
  • PESTS: Numerous but not serious.
  • CULTIVARS:

 

University of Delaware

University of Delaware Botanic GardensNewark, DE 19716Phone: 302 831-0153