Northern Red Oak
Quercus rubra
Other Common Names: American Red Oak, Eastern Red Oak, Mountain Red Oak
Plant Details
USDA Plant Hardiness Zones: 4a-8b Find Your Zone
Shrub Type: Deciduous Tree
Height at Maturity: 50-70′
Width at Maturity: 50-70′
Spacing: 75+ feet for space between trees
Growth Habit / Form: Upright Broad Rounded
Growth Rate: Moderate to Fast, 1-2′ per year
Flower Color: Gold Yellow
Flower Size: Insignificant
Flowering Period: Spring
Flower Type: Catkin
Fragrant Flowers: na
Foliage Color: Deep Green, Red in Fall
Fragrant Foliage: No
Fruit: Yes, acorn nuts are edible after tannins are boiled or leached out, but the nuts of this species have a bitter taste
Sun Needs: Full Sun to Part Shade; at least 5 hours of direct sun per day suggested
Water Needs: Average; drought tolerant when established
Soil Type: Clay, Loam, Silty
Soil Moisture / Drainage: Moist But Well-Drained; Drought tolerant when established
Soil pH: 4.0–7.0 (Acid to Neutral)
Maintenance / Care: Low
Attracts: Birds, Butterflies, Mammals, Moths
Resistances: Cold Temperatures (-40F), Deer, Disease, Drought (when established), Dry Soil (when established), Heat, Juglone (Black Walnut), Pollution (Air), Salt
Description
Among the fastest growing of North American native oak trees, the Northern Red Oak can add up to 2 feet or so in height per year reaching 50 to 70 feet tall and wide at maturity with a broad rounded crown. The large 5 to 7 lobed wavy leaves up to 7 inches long are handsome throughout the year, emerging pinkish-red, turning lustrous dark green in summer, and changing to a very attractive russet-red to bright scarlet red in fall. Insignificant flowers occur in spring in the form of catkins which are followed by rounded brown acorns wearing a thin top cap that develop over a two-year period. Young bark is smooth and light gray becoming shallowly furrowed into broad hard scaly ridges with age. As is with most oak trees, the Northern Red Oak has many benefits to wildlife, supporting many species of butterflies, moths, birds and mammals. Highly adaptable to many soil types and moist but well-drained to occasionally dry conditions, this long-lived oak is ideal for use as a large shade tree in the moist to dry and sunny landscape or in groupings or groves for forestation and reclamation projects. Its tolerance of salt and air pollution makes it a good selection for more exposed areas.
Wildlife Benefits
The wildlife benefits of the Northern Red Oak are numerous. It is an excellent source of food for many wildlife species including deer, black bears, turkeys, woodpeckers. squirrels, rabbits, raccoons and many other species of smaller mammals and birds. It also supports a wide variety of Lepidopteran. You may see moths and butterflies such as Imperial Moth, Banded Hairstreak, Edward’s Hairstreak, Gray Hairstreak, White-M Hairstreak, Horace’s Duskywing and Juvenal’s Duskywing.
Landscape & Garden Uses
Growing 50 to 70 feet tall and equally as wide at maturity, the Northern Red Oak is ideal for use as a shade tree around the home and around outdoor living spaces. When planted on the west side of a home the shade it provides can significantly reduce cooling costs. Also excellent in groupings for forestation or reclamation projects. A fine addition to native and wildlife gardens where the acorns are eaten by squirrels, chipmunks, deer, wild turkeys, blue jays, red-headed woodpeckers and many other wildlife species. Also provides a canopy for shelter.
Suggested Spacing: 75+ feet for space between trees
Growing Preferences
The Northern Red Oak is very easy to grow in most any moist but well-drained soil of average fertility and full sun to part shade. It prefers an acidic soil ranging from 4.0 to 6.5 on the pH scale. Established trees are drought tolerant. We suggest at least 5 or more hours of direct sunlight per day. A very low maintenance tree that requires no pruning unless you want to remove some lower branches to expose more trunk. Young trees will benefit from fertilizer however older trees can usually get what the need from the soil and rain water.
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