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Woody > Sciadopitys > Sciadopitys verticillata > Sciadopitys verticillata 'Winter Green'

Sciadopitys verticillata

'Winter Green'

Winter Green Umbrella Pine

Origin:  First Introduced by Dr.Sidney Waxman at the University of Connecticut in 1985.
'Winter Green'
Tree (evergreen)
USDA Hardiness Zone
5 - 8
Canadian Hardiness Zone
4a - 8a
RHS Hardiness Zone
H4 - H7
Temperature (°C)
-29 - (-7)
Temperature (°F)
-20 - 20
10 - 20 m
6 - 8 m
Description and Growing Information
Flowering Period
General Description
A large slow-growing cultivar with distinctive rich-green needles that turn to an almost blue-green. It has a tropical appearance with a refined pyramidal shape.
It can be used as an accent or specimen planted in a rock garden or border. Its unusual texture makes it a valuable addition to gardens. It is tolerant to salt and is somewhat tolerant to urban pollution. Plant it in a relatively sheltered location.
It is particular about its soil conditions, prefers rich, acidic soils with full sunlight. Younger plants should be wrapped with burlap in the winter to protect from extreme cold, dry winds and excessive drought until it is well established (2-3 years minimum).
Narrow, conical, and densely branched giving it a pyramidal look.
ID Characteristic
Dark green pine-like needles with a glossier appearance. The needles are arranged in whorls on the branches and are tufted together facing upward, giving the evergreen an appearance similar to a wind-distended umbrella skeleton.
No serious insect or disease problems.
This plant is not reliably hardy in our region since the species originates from Japan. It prefers well-drained soil with partial to full shade. It grows considerably better in warmer conditions.
Bark/Stem Description
Thin, nearly smooth, dark orange to brick red, exfoliating in long strips. Not considered particularly outstanding because it is usually hidden by the foliage.
Flower/Leaf Bud Description
The buds are ovoid, 2-3 mm across and are only produced at the tips of branches.
Leaf Description
The needles are bright light blue that turn to grey blue, the shoots radiate at a 45� angle. The needles give the appearance of an upside-down umbrella skeleton.
Flower Description
A monoecious flower; female solitary, terminal and subtended by a small bract. The flowers are not ornamentally significant.
Fruit Description
Cones oblong-ovate, upright, 50-100 mm long, 25-50 mm wide, opening to around 75 mm wide. Scales with re-flexed margins; cones are green at first, turning to brown the next year. Each scale bears 5-9 2-winged seeds.
Colour Description
The name "Wintergreen" describes the colour well, needles have a rich-green look that can turn to shades of blue to light-grey. The bark is a dark orange-red.
Texture Description
Medium coarse; considered one of the nicest-looking conifers for textural effects and specimen planting.
Notable Specimens
There are not any specimens that are located in the region, this is due to Ontario being at the edge of its hardiness zone. There are some specimens at the University of Connecticut, where its creator Dr. Sid Waxman first originated the tree.
Warm stratification for 100 days in moist sand at 17-21°C, or cold stratification for 90 days in moist, acid peat at 0-17°C. Cuttings may also be taken.
Dirr, M. (1998). Manual of woody landscape plants: Their identification, ornamental characteristics, culture, propagation and uses. Champaign, IL: Stipes Pub. Gilman, E. F., & Watson, D. G. (1994, October). Sciadopitys verticillata 'Winter Green' [PDF].