Quercus nigra
water oak
A large deciduous tree to 25m. It has green leaves of a very variable shape - generally narrow but with any arrangenment of a few lobes and/or points. They become yellow-brown before faling late. The acorns have only a shallow cup
Synonyms
Quercus aquaticaBuy this plant
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 | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Yellow Brown | Brown | ||
| Winter |
Position
- Full sun
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Fagaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- 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
- SE USA
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 hardwood cuttings in autumn or by sowing seed soon after it drops. For more advice see propagating from seed (tree/shrub
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
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