The Garry Oak (Quercus garryana), also known as Oregon White Oak or Oregon Oak, is a member of the Fagaceae family (Beeches, Chestnuts and Oaks). It has a range from the mountains of Los Angeles County northward to British Columbia, Canada, particularly in the foothills of the Siskiyou and Klamath Mountains, the Coast Ranges of Northern California, and of the west slope of the Cascades. It grows from sea level to 210 meter altitude in the northern part of its range, and at 300-1800 meter in the south of the range. There are three recognized varieties with largely overlapping ranges. The tree is named after Nicholas Garry, deputy governor of the Hudson's Bay Company, 1822-35. In the northerm part of its range it is an attractive tree, sometimes reaching 90 ft. but more often 50-60 ft. In the southern part of its range it is more often a shrub to 20 ft. It has large, lobed leaves which it drops in winter. It makes an excellent tree or shrub for mountain gardens and is important for wildlife.
Garry Oak Care
Quercus Garryana



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How to Care for the Plant
Water
It prefers moist soil and can tolerate drought
Sunlight
It can grow in semi-shade (light woodland) or no shade.
Soil
While common on droughty soils, Oregon white oak is also competitive on soils that are poorly drained during the wet season and droughty during the summer. This commonly occurs on heavy clays, coarse-textured flood plains, and river terraces in the interior valleys. Oregon ash is also common under these conditions.
Temperature
Prefers warmer summers than are usually experienced in Britain, trees often grow poorly in this country and fail to properly ripen their wood resulting in frost damage overwinter
Additional
Ingestion may cause severe discomfort.
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