Quercus floribunda
green oak
A large, fast-growing evergreen or semi-evergreen tree to 30m. Glossy dark green leaves have serrated eges with small bristles. In spring the male catkins are numerous and quite long, making them more visible than most. The bark is an attractive dark red-brown.
Size
Ultimate height
Higher than 12 metresTime to ultimate height
20–50 yearsUltimate spread
Wider than 8 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow Green | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Fagaceae
- Native to GB / Ireland
- No
- Foliage
- Semi evergreen
- Habit
- Spreading branched
- 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
How to grow
Cultivation
Suited to large gardens and parkland. Grow in any well-drained but moisture-retentive soil in good light. For more advice see tree cultivation
Propagation
Propagate by sowing seed soon after it drops or by semi-ripe cuttings in late summer
Suggested planting locations and garden types
- Architectural
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.