Quercus garryana

Garry Oak, Oregon White Oak

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Large deciduous tree native to western North America. Broad leaves, strong wood. Not suitable indoors due to size and winter dormancy requirements.
yard Outdoor plants wb_sunny Half-shade / Sun pets Pet Friendly
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Plant Details

Common Name Garry Oak, Oregon White Oak
Family Fagaceae
Genus Quercus
Species Garryana
Origin Western United States / Canada
Blooming Spring catkins, acorns mature in autumn
Leaf Color Green turning yellow/orange in autumn
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Well-drained sandy loam or clay-loam soil, tolerant of various pH levels

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Watering

Deep watering during dry summers, reduce significantly in winter dormancy

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Sunlight & Care

Requires full sun to partial shade for optimal growth and leaf coloration

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Fertilization

Minimal fertilization needed; apply compost annually in spring if soil is poor

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Pruning

Prune dead wood in late summer to avoid oak wilt disease spread

Pest Control Aphid Oak Gall Wasp 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 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting Period 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

thermostat
Temperature
5° – 95°
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)
10000 – 100000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
20% – 60%
% 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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