Eastern Arborvitae (Thuja occidentalis) in the Arborvitaes Database

Common names:
Give a thumbs up Eastern Arborvitae
Give a thumbs up Northern White Cedar
Give a thumbs up American Arborvitae
Give a thumbs up White Cedar
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Give a thumbs up Eastern White Cedar

General Plant Information (Edit)
Plant Habit: Tree
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Wet
Wet Mesic
Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Plant Height: 40 to 50 feet, to 75 feet
Plant Spread: 35 to 50 feet
Leaves: Evergreen
Fragrant
Needled
Other: scaly leaves with varying structure, from small and tight to long and feathery
Flowers: Inconspicuous
Other: Male cones are tiny, female cones are about 1/2 inch tall and release reddish seeds with wings on both sides, blown by the wind.
Uses: Windbreak or Hedge
Provides winter interest
Will Naturalize
Edible Parts: Bark
Leaves
Eating Methods: Tea
Resistances: Flood Resistant
Humidity tolerant
Drought tolerant
Toxicity: Other: Tea should not be drunk by pregnant women.
Propagation: Seeds: Stratify seeds: Cold moist stratification (40 degrees F, 4 degrees C) for 2 months.
Propagation: Other methods: Cuttings: Stem
Pollinators: Wind
Miscellaneous: Tolerates poor soil
Monoecious

full-grown mother species planted in wet area

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April 8, 2012

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(Full article31 comments)
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Photo gallery:
Location: Morton Arboretum in Lisle, IllinoisDate: winter in the 1980'sfull-grown mother species planted in wet area
By ILPARW
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Location: Quad Cities Botanical Garden, Rock Island, Il.Date: 2012-07-02
By jmorth
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Location: Morton Arboretum in Lisle, IllinoisDate: 2017-09-05mature specimens of the mother species
By ILPARW
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Location: Morton Arboretum along DuPage River in Lisle, ILDate: 2017-09-05tops of mature trees of the straight (mother) species
By ILPARW
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Location: Morton Arboretum along DuPage River in Lisle, ILDate: 2017-09-05mature trees of the mother species
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2017-09-05trunks of several trees together
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2017-09-05the summer foliage
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2017-09-05young cones
By ILPARW
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Location: QC, CanadaSurfaced sown Thuja seeds finally sprouts a tap root.
By tinytreez
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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 12, 2017 6:48 PM

The American or Eastern Arborvitae or Whitecedar, Thuja occidentalis, is a northern species native to southern Ontario & Quebec up almost to Hudson Bay, to Nova Scotia, northern New England & New York, northern Michigan, northern Wisconsin, and northern Minnesota, growing mostly in swamps, bogs, and lake margins, but also grows in open rocky meadow and hillsides. It has soft, fan-like, scaly, sort of aromatic foliage and it bears small erect, egg-shaped cones of 8 to 12 scales. It grows about 1 to 2 feet/year and often lives over 400 years. Its shallow, fibrous root system makes it easy to transplant. I saw some way up in northern Minnesota in a swamp many years ago while on vacation. Otherwise, I have only seen the regular or straight or mother species at Morton Arboretum in northeast Illinois, west of Chicago planted near the little Du Page River. Numerous cultivars that are compact and dwarf with various characteristics have been taken from this species and are abundantly planted in landscapes in much of eastern North America.

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Posted by Cyclaminist (Minneapolis, Minnesota - Zone 5a) on May 3, 2015 4:59 PM

We have this tree, planted by a previous owner. It must be a cultivar, but I don't know how to find out which one. The leaf scales branch a lot, resulting in a pretty tight structure. Other varieties can be more feathery- or ferny-looking. It self-seeds a bit, and I'm growing one seedling as a bonsai.

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Posted by tinytreez (Greater Montreal, Quebec, Canada - Zone 6a) on Jan 19, 2020 10:08 AM

While being pruned, the foliage becomes very fragrant. This makes pruning very enjoyable.

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Plant Events from our members
tinytreez On January 19, 2020 Obtained plant
January 12, 2020: Obtained plant (Seeds obtained from Mount Royal Seeds.

Seeds soaked in lukewarm water for 24 hours.

Seeds placed in moist paper towel and stored in plastic sandwich bag and placed inside refrigerator to stratify for ~ 2 months.

Stratification end date: February - March)
January 16, 2020: Seeds germinated (My Thuja seeds are alive! Well a couple of them at least. They germinated and their roots are growing.

This is from a visual inspection of the seeds that were sown on the surface. I wont transplant them, they look too delicate.

If anyone has had any experience growing thuja occidentalis from seed, please let me know. Thank you!

Image: https://pasteboard.co/IQfcPom....
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Discussion Threads about this plant
Thread Title Last Reply Replies
Identify mid-size evergreen by Wyngate Oct 17, 2019 3:35 PM 3
Untitled by unicuddle516 Oct 14, 2019 7:31 AM 10
Arborvitae, Emerald Greens - Can I bring these back? by Shellyconleyjc Oct 19, 2019 4:16 AM 2
Tall Narrow Plants/Shrubs/Trees by Frillylily Jun 9, 2019 11:43 AM 11
Shrub ID please by NoviceGardener80 May 8, 2019 11:23 AM 4
'DeGroot's Spire'? by BlueOddish Mar 3, 2019 4:50 PM 0
Tree ID and how to revive by GreneThum Feb 24, 2019 1:22 PM 2
Dwarf Conifers by frankrichards16 Nov 23, 2018 6:48 PM 7
Arborvitae Plants turning brown by Maddymad Jun 16, 2018 4:21 AM 2
Problem with Cedars and another unknown tree by bjd Jun 5, 2018 10:23 PM 2

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