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Woody > Thuja > Thuja standishii > Thuja standishii

Thuja standishii

Japanese Arborvitae

Origin:  Introduced into cultivation in Europe by Standish Nurseries in England by Mr. Carriere, in 1867. It is one of the 5 sacred trees of Kiso Forest. It was only cut for wealthy or powerful families, and if cut by a commoner they would be killed.
            Mike's Opinion

this is Mike


This tree is valued for its durable, waterproof, and attractive scented wood. Dirr says it's "a beautiful specimen", and I must concur as it is a stately, regal tree; pity it is not grown more often in Ontario gardens.

Michael Pascoe, NDP., ODH., CLT., MSc. (Plant Conservation)


Tree (evergreen)
USDA Hardiness Zone
Canadian Hardiness Zone
RHS Hardiness Zone
Temperature (°C)
Temperature (°F)
20-30 m
6 m
Description and Growing Information
Flowering Period
General Description
This tree will grow with a straight slender trunk. The branches are horizontal with the ends of the branch arching upwards. It has a broadly conical crown. Its foliage is deep green in the summer and turns to a yellow/brown/green in the winter.
May be used as a specimen tree for its shaggy appearance in both the bark and the foliage/branches. Can also be used as a hedge or grouping plant. It needs a somewhat protected location in our climate.
This specimen can be grown in a cool to warm climate, is frost tolerant and marginally hardy. It enjoys full sun, with shelter to prevent winter burn. Plant in moist, well drained soils.
Pryamidal, broadly conical, open and irregularly arranged branching.
ID Characteristic
This cedar has a broad head. It is broadly conical, with a slender trunk, and deep red, shaggy bark. The foliage is semi-weeping and has a shaggy look. The branch sprays arch and are bright to dark green on the upper side, with whitish spots beneath.
This plant is susceptable to winter browning caused by drastic and fast temperature changes. It also has problems with cedar leaf miner, tip blight, scales and more.
Grows naturally in the mountains of Honshu and Shikoko, Japan, in full sun and well drained soils.
Bark/Stem Description
It has shaggy, reddish brown bark, that is finely fissured.
Flower/Leaf Bud Description
Buds are inconspicuous, 1.5-2 mm long and black in colour.
Leaf Description
Leaves are scale-like, 1-8mm long, lax and open always letting some light shine through. They are glandular and somewhat incurved towards the apex. Facial leaves are obtuse, thickened and are in lateral pairs with their edges turned inwards.
Flower Description
Monoecious, terminal, solitary.
Fruit Description
Cones are oblong, 10 scaled, and 3-8 mm long. Cones have about 10 broadly oval, overlapping scales. Only 2 -3 pairs have seeds.
Colour Description
It is one of the few trees of the species that has the best foliage characteristics. It's branchlets are green above, with white spots below. It is a dark green in the summer, fading to a dull green brown in the autumn, with red-brown bark.
Texture Description
Medium to fine. Soft textured, easy to handle leaves, with soft peeling bark.
Notable Specimens
The University of Western Ontario, London, Ontario, Canada.