SelecTree: Tree Detail
Photo Locations: Chico, CA, Hoyt Arboretum - Portland, OR, Santa Cruz and Cal Poly State University - San Luis Obispo, CA
Best in deep, fertile soil. Outstanding fall color. Leaves are lobed (7-9 lobes).
Native to Eastern North America.
Additional Common Names
RED OAK, NORTHERN RED OAK
Erect or Spreading and requires ample growing space.
Rounded or Spreading Shape.
Has Deciduous foliage.
Height: 60 - 80 feet.
Width: 50 - 70 feet.
Growth Rate: 24 to 36 Inches per Year.
Longevity Greater than 150 years.
Leaves Elliptic and Lobed, Green, Red or Purple or Bronze, Deciduous.
Flowers Inconspicuous. Flowers in Spring. Has separate male and female reproductive parts on the same tree (monoecious).
Brown Acorn, Medium (0.50 - 1.50 inches), fruiting in Fall or Winter.
Bark Dark Gray or Red Brown, Fissured.
Shading Capacity Rated as Moderately Dense in Leaf.
Shading Capacity Rated as Moderate out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 10 and 14 - 24.
USDA Hardiness Zones 5 - 9.
Exposure Full Sun to Partial Shade.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Resistant to Verticillium. Susceptible to Aphids, Caterpillars and Insect Galls, Armillaria, Anthracnose, Phytophthora, Root Rot and Rust.
Health, Safety & Environmental Concerns
Branch Strength Rated as Strong.
Root Damage Potential Rated as Moderate.
Allergy and Poisonous Health Hazard.
Biogenic Emissions considered High.
Desirable Wildlife Plant.
Attracts Birds and Squirrels.
Not Deer Palatable.
Cite this tree:
SelecTree. "Quercus rubra Tree Record." 1995-2021. May 14, 2021.
< https://selectree.calpoly.edu/tree-detail/quercus-rubra >
SelecTree Nursery Connection Map
Cal Poly / ESRI