Chamaecyparis pisifera 'Squarrosa Sulphurea' (Sulphur Scaled Sawara Cypress)


Michael's Opinion

The Sulphur Scaled Sawara Cypress is a beautiful evergreen used as a specimen or a hedge, its yellow-lime green colour makes this tree a prominent focal point for any landscape.

Botanical Information

FamilyCupressaceae
GenusChamaecyparis
Speciespisifera
Cultivar'Squarrosa Sulphurea'
CategoryWoody
TypeTree (evergreen), Shrub (evergreen)
ReferencesPoor, Janet Meakin. "Plants That Merit Attention: Volume 1, Trees". Beaverton, Or.: Timber, 1984. Print. Brickell, Christopher, and Judith D. Zuk. "The American Horticultural Society A-Z Encyclopedia of Garden Plants". New York, NY: DK Pub., 1997. Print.
OriginKoster and Sons, Boskoop, Netherlands. Cultivation began in 1900's by Nicholson.
Pronunciation

Details

USDA Hardiness Zone4 - 8
USDA Hardiness Ref.
Canadian Hardiness Zone2a - 7b
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H5
RHS Hardiness Ref.
Temperature (°C)(-32) - (-7)
Temperature (°F)(-25) - 20
Height5-8 m
Spread3-4 m
GrowthMedium
Flowering PeriodApril

Description and Growing Information

General DescriptionThis small tree has dense foliage with a conical shape. Branches spread out and become less dense at full maturity.
ID CharacteristicThe foliage is a bright yellow-lime green colour. The plant has a thick, conical shape and awl-like leaves; the leaves are an irritant to the skin.
ShapeIt is broadly conical to slightly pyramidal with dense slightly ascending branches.
LandscapeA specimen tree for its foliage and as a hedge.
PropagationGrafted using Chameacyparis pisifera as a rootstock. Semi-hardwood cuttings from late summer are used with a rooting hormone.
CultivationIt grows well in moist, well-drained soils with full sun to partial shade. Must be protected from strong winds.
PestsAphids, honey fungus, and Phytophthora root diseases.
HabitatHorticultural origin.
Bark/Stem DescriptionThe bark is smooth with a light brown colour changing to a darker brown in winter. New growth’s branch colour is lime green changing to light brown as it matures.
Flower/Leaf Bud DescriptionThe acuminate buds are small, light brown and 1-2 mm in length.
Leaf DescriptionDense, awl-like foliage with a yellow-lime green colour turning to grey-green in winter, leaves are 2-3 cm long.
Flower DescriptionThe flowers are small conical, and 2-4 mm in length, a reddish-purple colour.
Fruit DescriptionThe female cones are small, light brown, and globose; about 3-5 cm in length, male cones are reddish-brown.
Colour DescriptionThe foliage is lime green with a mix of yellow. In winter the bark turns a darker brown and the leaves turn a light grey-green.
Texture DescriptionIt has very soft foliage along with smooth bark.

Photographs