Japanese Black Pine

Pinusthunbergii

Family
Pinaceae (py-NAY-see-ee)
Genus
Pinus (PY-nus)
Species
thunbergii (thun-BERG-ee-eye)
Synonym
Pinus thunbergiana
Sun Exposure
Full Sun
Foliage
Evergreen
Height
20-30 ft. (6-9 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)
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)
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Trees
Conifers
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
Seed Collecting
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds
Wear gloves to protect hands when handling seeds
Properly cleaned, seed can be successfully stored
Regional

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

Prescott, Arizona

Canoga Park, California

Thousand Oaks, California

Rehoboth Beach, Delaware

Baldwin City, Kansas

Frederick, Maryland

Dracut, Massachusetts

Neptune, New Jersey

Knoxville, Tennessee

Hereford, Texas

Houston, Texas

San Antonio, Texas

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Featured Videos

Gardener's Notes:

5
positives
0
neutral
0
negative
Sort By:
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R
Downingtown, PA | April 2019 | positive

I've only seen this species planted around in southern Delaware near the shore areas. It is a hard pine that is similar to the Austrian B...Read More

B
Atlanta, GA (Zone 8a) | June 2012 | positive

This tree has tripled in size in three years! Two drought years. Spectacular!

I am a farm girl with a Ph.D. Retired. This ...Read More

W
Eastern Long Island, NY (Zone 7a) | December 2007 | positive

Often called the 'King of Bonsai', Pinus thunbergrii always commands attention. It's limbs are forgiving and easily bent. It's trunk is...Read More

M
M
Benton, KY (Zone 7a) | January 2005 | positive

An Asian import that is widley used in landscaping, because it adapts to pruning well.

In Japan, it is widely used as a ti...Read More

P
Acton, CA (Zone 8b) | April 2004 | positive

This is one of the most popular pines out here in Southern CAlifornia for small or Japaneses gardens (does great in zones 9a-10a by the w...Read More

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