Quercus Species, Japanese Blue Oak, Ring Cupped Oak

Quercusglauca

Family
Fagaceae (fag-AY-see-ee)
Genus
Quercus (KWER-kus)
Species
glauca (GLAW-kuh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
Provides Winter Interest
Textured
Height
20-30 ft. (6-9 m)
Spacing
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Inconspicuous/none
Bloom Time
Mid Spring
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Richmond, Texas

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Gardener's Notes:

2
positives
0
neutral
0
negative
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D
Sumter, SC | March 2010 | positive

There is a beautiful Japanese blue oak growing in Brookgreen Gardens, located between Mrytle Beach and Georgetown, SC. I'm surprised the...Read More

J
J
jtk
Issaquah, WA (Zone 8a) | December 2004 | positive

With water and fertilizer it grows moderate to fast. Attractive bronze spring leaves that the deer love to eat.

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