Japanese Emperor Oak

Quercusdentata

Family
Fagaceae (fag-AY-see-ee)
Genus
Quercus (KWER-kus)
Species
dentata (den-TAY-tuh)
Synonym
Quercus daimo
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
Pollen may cause allergic reaction
Bloom Color
Cream/Tan
Inconspicuous/none
Bloom Time
Late Spring/Early Summer
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
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
By grafting
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible
Regional

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

Arcadia, California

Olathe, Kansas(2 reports)

Shawnee Mission, Kansas

Clermont, Kentucky

Georgetown, Kentucky

Louisville, Kentucky

Lincoln, Nebraska

New Ipswich, New Hampshire

King Ferry, New York

Christiana, Tennessee

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Featured Videos

Gardener's Notes:

1
positive
0
neutral
1
negative
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V
(Zone 8a) | January 2015 | negative

There is a fine, 20 ft tall specimen of quercus dentata at Peckerwood Gardens, a private garden in Hempstead TX. I plan to push the env...Read More

V
Scott County, KY (Zone 5b) | January 2007 | positive

The Japanese Emperor oak is a fine slower growing large leaved oak for the home landscape. It will remind one of the bur oak, with its r...Read More

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