Thuja occidentalis – American Arborvitae, White cedar

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  3. Thuja occidentalis
Cupressaceae

Thuja occidentalis – American Arborvitae, White cedar

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Medium-large conifer with a densely branched crown that grows a uniform, narrow pyramidal shape at first but that becomes somewhat more irregular later. Attains a height of up to 20 m but does not become broader than approx. 4 - 5 m. The trunk is reddish brown and peels in narrow strips. The branches grow slanted upwards slightly to horizontal. The flattened twigs have many branches and the scales are stacked like roof shingles. They are matted to a somewhat glossy bright green and turn yellowish brown in the winter. When rubbed they give off a strong smell. The flowers and small cones are relatively unremarkable. Since this conifer tolerates pruning particularly well, it has become one of the most popular hedge plants. It is a particularly winter-hardy plant that tolerates dryness. There are very many cultivars that vary greatly in terms of growth habit and colour of foliage.

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Specifications
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Height
15 - 20 m, fast growing
Crown
narrow pyramidal, later irregular pyramidal, dark, dense crown
Bark and branches
bark reddish brown, peeling off in narrow strips
Leaf
scales, a matted bright green, yellowish brown in the winter, evergreen
Flowers
unremarkable, fragrant flowers
Fruits
cones, light brown, scaled, 1.5 - 2 cm
Spines/thorns
None
Toxicity
has toxic components
Soil type
all
Soil moisture
suitable for dry soil, withstand short flood
Paving
tolerates no paving
Winter hardiness zone
3 (-40,0 to -24,5 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind
Application
parks, cemeteries, industrial areas, large gardens
Shape
specimen conifer, hedge plant
Origin
eastern North America
Haagplant Specimen conifer acid soil clay soil loamy soil peaty soil sandy soil tolerates no paving resistant to frost (WH 1 - 6) suitable for shadow suitable for dry soil withstand short flood can withstand wind narrow conical 1st size , taller than 12 metres dense crown green yellow fast growing toxic components Fragrant flowers
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Frequently asked questions
Thuja occidentalis

Thuja occidentalis can eventually reach a height of 15 - 20 m, fast growing, depending on the site and climate conditions.

Thuja occidentalis is fast growing and can eventually reach a height of 15 - 20 m, fast growing, depending on the site and climate conditions.

The right time to plant Thuja occidentalis is during the dormancy period. In Western Europe, Thuja occidentalis with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Thuja occidentalis blooms in march.
General