Swamp White Oak (Quercus bicolor)

Swamp White Oak

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Large deciduous tree native to North American wetlands, distinguished by silvery-white undersides on leaves and high drought tolerance once established.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Swamp White Oak
Family Fagaceae
Genus Quercus
Species Bicolor
Origin North America (Eastern USA & Canada)
Blooming Spring, inconspicuous catkins (male and female)
Leaf Color Dark green upper, silvery-white undersides
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Moist, well-drained acidic to neutral soil; tolerates wet conditions better than most oaks.

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Watering

Keep soil consistently moist during establishment; drought tolerant once mature but thrives with regular moisture.

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Sunlight & Care

Prefers full sun for best growth and leaf coloration; tolerates partial shade in hotter climates.

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Fertilization

Minimal fertilization required; apply slow-release fertilizer in early spring if growth is sluggish.

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Pruning

Prune in late winter or dormant season to remove dead wood and shape structure before leaf-out.

Pest Control Borer Gall Wasp Oak Lace Bug Tent Caterpillar

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 7 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
-40° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
25% – 95%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
2000 – 80000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
150 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 75%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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