Quercus alba


Preeminent tree over its range – some of the largest and most famous trees. Highly prized wood since colonial times, used in the USS Constitution. Tyloses in cells help make the wood water- and rot-resistant, making it the choice for wine, whiskey and bourbon barrels. Lives for centuries under favorable conditions, becoming massive, and as wide as tall.





  • Culture
  • Concerns
  • Management
Culture for White Oak

Hardy from zones 3 to 9. Fairly tolerant of a variety of habitats, in moderately acid and alkaline soils. It is mainly a lowland tree, not adapted to dry habitats. Prefers full sun, and does best in deep, moist, rich soils with in pH of 5.5 to 6.5, and a mulch bed. An infrequent ornamental or street tree due to its slow growth and eventual massive size.

Concerns about White Oak

Most problems are minor, but repeated defoliations by gypsy moths can be fatal. A root rot caused by the fungus Armillaria mellea attacks weakened trees. Oak wilt, a vascular disease caused by the fungus Ceratocystis fagacearum, is potentially the most destructive disease of white oak. Anthracnose can be a problem in wet seasons. White oak is sensitive to soil disturbances like construction. Not tolerant of urban conditions.

Management Practices for White Oak

Branches are strong and resistant to breakage, so regular pruning might not be necessary. Requires a large space to grow. Important to mulch beneath the canopy to eliminate grass competition and maximize health and growth. Might require irrigation during dry periods.

Photos related to White Oak



National champion wye oak prior to its failure in 2002

Characteristic form and spread of mature white oak

Armillaria Fruiting bodies on white oak roots

Telephone

540-364-2401

Location

P.O. Box 2340
Leesburg , VA 20177

Office Hours

Monday through Friday
8 a.m. – 4 p.m.

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