Image for Garry Oak

Garry Oak

Scientific name

Quercus garryana


Oregon Oak is a deciduous tree species that typically grows between 12 and 25 m in height. This plant may also be known by the common name Garry Oak. The leaves are alternately arranged, dark green colored, have 3-7 deep rounded lobes, and have entire margins. The flowers produced are catkins between April and June while the fruits produced are large acorns between August and November. The fruit and habitat are beneficial to wildlife species, such as birds and small mammals. A shrubby form has been observed in areas with shallow soil where the tap root cannot grow deep.

Planting conditions

Oregon Oak grows best in dry to normal conditions with full sun exposure. It prefers well-drained sand or loam soil types, but can tolerate clay and rock. It can tolerate drought and dry soil but young plants should be watered occasionally during hot summers. This tree can be susceptible to galls and root rot if over watered. This tree can be naturally found in dry prairies, rocky slopes, and open forests.


  • Plant height:
    • Any
    • Over 3m
  • Moisture level:
    • Dry
    • Normal
    • Drought Tolerant
  • Light conditions:
    • Full sun
    • Partial sun
    • Shade
  • Soil type:
    • Sandy
    • Loamy
    • Clay
    • Rocky
  • pH:
    • Normal
  • Depth:
    • Potted
  • Plant type:
    • Tree
  • Height:
    • 12-25 m
  • Spread:
    • 3 m