Oregon White Oak
The iconic oak of the Willamette Valley, the Oregon White Oak was a key part of the oak savannah that dominated the Willamette Valley prior to European invasion. Trees can eventually reach a stately 100 feet or so and their gorgeous spreading form is quite the sight to behold on older specimens. Some trees of great age can still be seen in pockets of our valley. Excellent wildlife tree and a gift to future generations wherever they are planted.
Latin Name: Quercus garryana
Site and Soil: Oaks like 1/2 day to full sun and well-drained soil.
Pollination Requirements: Self-fertile. Will freely hybridize with other Quercus species planted nearby
Hardiness: Oak Tree is hardy to -20º F.
Bearing Age: 4-5 years after planting.
Size at Maturity: 70-100 ft.
Bloom Time: June
Ripening Time: October
Yield: 100+ lbs.
Pests & Diseases: Sudden Oak Death can be an issue for Quercus species in Southwest Oregon and California but so far we have not seen it affecting the cork oak or oaks in the Portland Metro area
USDA Zone: 5