Quercus rubra - Red Oak - Fall Colour
Quercus rubra - Red Oak - Fall Colour - Photo courtesy of J. Frank Schmidt & Son Co.
Quercus rubra - Red Oak - Photo courtesy of J. Frank Schmidt & Son Co.
Quercus rubra - Red Oak - Leaves Emerging in Spring

Red Oak

Quercus rubra

  • Rounded, broad-spreading, often irregular crown
  • Dark green leaves have sharply pointed lobes
  • Insignificant flowers (catkins) are followed by acorns
  • Foliage turns a red-brown in the fall

ZONE:
4

COLOUR:
Green

HEIGHT:
16-22 m

SPREAD:
15-20 m

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Growing and Maintenance Tips:


A slow-growing large specimen shade tree at maturity, it needs a large space in which to grow. Acorns are a favourite food of wildlife.    

(Native) Oaks, according to Tallamy, support 534 species of lepidoptera (butterfly and moth) caterpillars– more than any other native tree or plant. 

Additional Notes about Red Oak:


Native to Ontario and parts of North America.

Characteristics & Attributes


GROWTH RATE:
Medium
ATTRIBUTES:
Fall Color
Deciduous
Seed
FLOWERING TIME:
Spring
HABIT:
Rounded
FOLIAGE COLOR:
Green (dark)
Red
LANDSCAPE USES:
Naturalizing
Specimen