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Japanese Cedar 'Sekkan Sugi'

Cryptomeria japonica

Family: Cupressaceae (koo-press-AY-see-ee) (Info)
Genus: Cryptomeria (krip-toh-MER-ee-uh) (Info)
Species: japonica (juh-PON-ih-kuh) (Info)
Cultivar: Sekkan Sugi



Foliage Color:


Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us


30-40 ft. (9-12 m)


20-30 ft. (6-9 m)


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)

Sun Exposure:

Full Sun

Sun to Partial Shade


Handling plant may cause skin irritation or allergic reaction


Bloom Color:


Bloom Time:



Grown for foliage



Provides winter interest

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By air layering

By tip layering

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:


Decatur, Georgia

Baltimore, Maryland

Roslyn, New York

Chocowinity, North Carolina

Cincinnati, Ohio

Portland, Oregon

Lititz, Pennsylvania

Wilkes Barre, Pennsylvania

Anacortes, Washington

Lake Forest Park, Washington

Port Angeles, Washington

Seattle, Washington

South Prairie, Washington

show all

Gardeners' Notes:


On Jun 18, 2014, Sequoiadendron4 from Lititz, PA (Zone 6b) wrote:

We've been growing two of these since the spring of '10. They were tiny when we planted them at around 3' tall. Now both are about 8-9' tall and around 4' wide. They are gorgeous trees and look really nice on the each corner of our house. One of ours is exposed to NW winds on the SW corner of our home. This one tends to brown some in the winter. Winter of '13-'14 I sprayed this one with Wiltpruf and had great success doing so despite a terrible winter. I'm not sure the plant file info is correct about the seeds. Both do produce seeds via globe shaped cones. I have had a single volunteer so far and successfully transplanted that one at my in-law's house.


On Dec 19, 2008, Lakeside3 from Jacksonville, NC wrote:

Facing a southwest exsposure in zone 8 and full sun. During fall into winter the foliage is bronzed then spring changes to a beautiful chartruse to creamy yellow hue which seems to glow during the mid-summer day. Here are a few photos from 2007 - 2008.


On Oct 23, 2004, empressjoan from Ashland, OR wrote:

I first saw this plant at the Oregon Garden. I have been growing it in a pot for several years and it is has visual interest all year round. It has spherical cones that sprout small branches, and also tiny ovoid cones. I will try to post a photo and see if anyone else has had a plant with these characteristics.