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Habitat
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native to China and Japan
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hardy to zone 6
Habit and Form
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an evergreen coniferous tree
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pyramidal or conical with a single trunk
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dense when young, developing more clustered, tiered branching with age
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has a graceful habit
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medium texture
Summer Foliage
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evergreen, spirally arranged, awl-shaped needles
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needles are 4-angled and curve inward with a slight twist
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needles persist 4 to 5 years
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the first needles produced each year are shorter than later needles
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dark green to bluish-green color; glossy
Autumn Foliage
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evergreen foliage develops a distinct bronze to brown color during cold months, especially in windy exposed locations
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foliage regreens in the spring
Flowers
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monoecious, with male and female flowers
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inconspicuous
Fruit
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terminal cones are produced
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cones are 0.5" to 1" diameter and are globe-shaped
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color is dark brown
Bark
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a very nice reddish-brown
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it shreds in long strips, not unlike
Chamaecyparis
sp.
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quite showy
Culture
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prefers a rich, deep, moist soil that is light and contains significant organic matter
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full sun is best
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protection from wind is essential
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likes a moderated environment
Landscape Use
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as a specimen tree
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for decoration
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could be used in groupings as a large screen
Liabilities
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most notable is the limitation of insufficient cold hardiness for exposed locations in zone 6 or colder
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winter burn and injury
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possibly difficult to find
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retained dead foliage can detract
ID Features
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evergreen, spirally-arranged needles persist 4 to 5 years
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conical shape with tufted or plumed foliage
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red-brown shredding bark
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distinct bronze color in cold months
Propagation
Cultivars/Varieties
'Lobbii'
- This is a fastigiate/columnar form, growing to 30' tall and much less wide. The foliage is deep green, bronzing in cold weather.
'Vilmoriniana'
- A compact form to about 3' tall. Has dense foliage that turns a mottled gold and purple color in the fall. A good rock garden plant. Numerous other dwarf selections exist with slight variations on this dwarf theme.
'Yoshino'
- Perhaps the most commonly available form in New England nurseries. The summer foliage is blue-green and it bronzes in winter to a purplish-brown hue. Reports indicate fast growth and pyramidal habit to 30' tall.
Cryptomeria japonica
Japanese Cryptomeria, Japanese Cedar
Taxodiaceae
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