Quercus rubra
red oak
A fast-growing large deciduous tree with an open, spreading crown and broad leaves to 22cm in length, turning red or red-brown in autumn. Flowers greenish, inconspicuous
Other common names
American red oaknorthern red oak
Size
Ultimate height
Higher than 12 metresTime to ultimate height
20–50 yearsUltimate spread
Wider than 8 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Brown Red | Brown | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Fagaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Pets (dogs): Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Quercus can be deciduous or evergreen trees or shrubs, with entire, lobed or toothed leaves; flowers inconspicuous, followed by characteristic acorns; sometimes good autumn colour
- Name status
Correct
- Plant range
- E North America
How to grow
Cultivation
Grow in deep, fertile, well-drained soil. A fast growing spreading deciduous tree. Requires lime free soil
Propagation
Propagate by seed, sowing as soon as ripe, in a coldframe or grafting in mid-autumn or early winter
Suggested planting locations and garden types
- Cottage and informal garden
- Low Maintenance
- Flower borders and beds
Pruning
Pests
May be susceptible to oak processionary moth, aphids, caterpillars, leaf-mining moths and oak gall wasps
Diseases
May be susceptible to powdery mildews and honey fungus
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.