Thuja occidentalis
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Thuja occidentalis

western arborvitae
white cedar
American arborvitae

  family cupressaceae 
  genus thuja 

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Genus  Thuja Species  occidentalis Variety  Cultivar  Common names  western arborvitae   white cedar   American arborvitae Family  CUPRESSACEAE Specimen number  S13818 Data source  Allergy p257;HtZn p175;MedPl p274;Frgnt p115;Frgnt p315
Life cycle
Life form  Terrestrial Life cycle  Various Life span    Annual cycle  Not applicable Stature  Tree Growth form  Not applicable Growth habit  Various Overall height  3' - 30' Overall spread   
Sunshine  Full sun to light shade Water  Moist, well drained Optimal soil texture  Fertile Acceptable soil pH  Neutral USDA hardiness  USDA zones 03a-08b AHS heat zones  Heat zones 09-02 Sunset climate zones  Not classified
Suitable for gardens  yes Nursery  Unknown Compost  no Size at acquisition  Unknown Garden location  Unknown Garden notes  Thuja occidentalis has leaves that are strongly resinous. American arborvitae (also known as western arborvitae and white cedar) can survive very cold winters with annual averages as low as -40� Fahrenheit. It needs a bit of a cold spell with temperatures below 15� Fahrenheit to do its best. This plant needs summer days with high heat. The optimal soil texture for this species is one that is fertile. This plant does best in full sun to light shade. It does well in moist, well drained soils.
Special qualities
Tolerates drought  no Tolerates high humidity  no Tolerates seaside conditions  no Insect resistant  no Disease resistant  no Deer resistant  no Best uses    Symbiosis  Attracts butterflies  no Attracts hummingbirds  no Autumn foliage  no Colorful berries  no Desirable qualities    Other interest    Other interest color  Other interest period   
Adverse factors
Common pests  Poisonous parts  Poisonous indications  Internal poison  no Dermatologic poison  no Livestock poison  no Mechanical injury  no Hay fever pollen  Light Hay fever season  Apr 01 - May 31 Adverse qualities   
Herbal medicine
Medicinal properties  antiviral   anticarcinogenic   expectorant   decongestant   emmenagogue   diuretic Medicinal parts  Leaves Has medicinal uses  yes Do not self-administer  yes Do no use if pregnant  yes Legally restricted  no Toxicity precautions  Medicinal notes  Thuja occidentalis has too many possible beneficial herbal uses to fully enumerate. A few of its uses include: as an antiviral, as an anticarcinogenic, as an expectorant and as a decongestant. See the medicinal properties section for the full list. American arborvitae (sometimes called western arborvitae and white cedar) should only be used under professional guidance. This plant is not to be taken by pregnant women. The plant parts used in herbal preparations are the leaves. Although this plant is freely wind-pollinated, it shouldn't pose too much difficulty to the hay fever susceptible. April to May is the usual season for causing hay-fever problems.
Traditional uses
Parts used  Traditional uses  Contemporary uses  Fragrance  scent of ripe strawberries. on hot days freely emits a scent of wild strawbe Fragrance parts  Leaves Fragrance intensity  Strong Fragrance category  Resinous Dye parts  Dye color 
Propagule  Various Pollination method    Planting style    Crop spacing    Row spacing    Cold frame  Planting period    Harvesting period    Frost tolerance    Heat requirement    Fertilizer  Typical Time to harvest 
Is edible  no Culinary uses  Nutritional value  Edible parts  Description of edible parts Flavor / texture 
Horticulture notes  Thuja occidentalis is a wildflower that occurs throughout Appalachia.
Tag needs printing  no Collection notes  Leaves: Thuja occidentalis has needlelike leaves.

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Last reviewed November 01, 2004   


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