Japanese Cedar
Cryptomeria japonica 'Knaptonensis'

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

Category:

Shrubs

Trees

Foliage Color:

Silver/Gray

Blue-Green

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us

Height:

24-36 in. (60-90 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

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

Danger:

Handling plant may cause skin irritation or allergic reaction

Pollen may cause allergic reaction

Bloom Color:

Inconspicuous/none

Bloom Time:

N/A

Foliage:

Grown for foliage

Evergreen

Aromatic

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

Regional

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

Washington, District Of Columbia

Natchez, Mississippi

Wilkes Barre, Pennsylvania

Seattle, Washington

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Neutral

On Apr 12, 2014, jaguarlady53 from Natchez, MS wrote:

I have 3 of these shrubs. I bought them for small shrubs to 2'. Mine have grown taller than that. I am 5'2 and look way up to them. The tallest has to be 7'. I think they were planted 4 to 5 years ago. I don't want to trim them but may have to do so.

Positive

On Jun 1, 2005, alstuff from Washington, DC wrote:

This plant is hardy. I have it in medium shade and have moved it once with no ill effects.