Japanese Cedar 'Knaptonensis'

Cryptomeriajaponica

Family
Cupressaceae (koo-press-AY-see-ee)
Genus
Cryptomeria (krip-toh-MER-ee-uh)
Species
japonica (juh-PON-ih-kuh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Evergreen
Shiny/Glossy
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)
Danger
Handling plant may cause skin irritation or allergic reaction
Pollen may cause allergic reaction
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Shrubs
Trees
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Bronze
Blue-Green
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)
6.6 to 7.5 (neutral)
Patent Information
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 is said to grow outdoors in the following regions:

Washington, District of Columbia

Natchez, Mississippi

Wilkes Barre, Pennsylvania

Seattle, Washington

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Gardener's Notes:

1
positive
1
neutral
0
negative
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J
Natchez, MS | April 2014 | neutral

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 t...Read More

A
Washington, DC | June 2005 | positive

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

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