Quercus nigra

Water Oak

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Fast-growing deciduous oak native to the southeastern USA, highly tolerant of wet soils and adaptable for large landscape plantings.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
info

Plant Details

Common Name Water Oak
Family Fagaceae
Genus Quercus
Species Nigra
Origin United States
Blooming Acorns produced in autumn, catkin flowers appear in early spring
Leaf Color Dark green (turns brown/rust before drop)
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained loamy soil or clay; tolerates wet conditions better than most oaks.

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Watering

Regular watering when young; drought tolerant once established, prefers moist soil initially.

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Sunlight & Care

Full sun required for best growth and acorn production; partial shade tolerated.

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Fertilization

Minimal fertilization needed; apply slow-release fertilizer in early spring if growth is poor.

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Pruning

Prune in late winter to shape or remove dead wood before leaf-out.

Pest Control Aphid Caterpillar Oak Leaf Roller Scale Insect

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 10 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
10° – 104°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 90%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
100 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 85%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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