Pinus sylvestris var. fastigiata (Sentinel Pine, Scots Sentinel Pine, Pyramidal Scots Pine)


Botanical Information

FamilyPinaceae
GenusPinus
Speciessylvestris
Varietyfastigiata
SynonymsPinus sylvestris f. fastigiata, Pinus sylvestris 'Fastigiata'
CategoryWoody
TypeTree (evergreen)
OriginFirst introduced commercially to Europe in 1856.
Pronunciation

Details

USDA Hardiness Zone4-8
USDA Hardiness Ref.
Canadian Hardiness Zone3
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-35
Temperature (°F)-30
Height10 m
Spread1-3 m
GrowthMedium
Flowering PeriodMay

Description and Growing Information

General DescriptionA narrow, columnar form of the typical Christmas tree.
ID CharacteristicA fastigiate form of Scots Pine. Orange to grey exfoliating bark. Blue-green needle-like foliage with a slight twist reminiscent of the straight species. Bears small, grey-brown cones in maturity. Whorled branching habit.
ShapeUpright, narrow, columnar growth habit. Will break apart if exposed to heavy snowfall.
LandscapeUsed as a specimen, accent plant, or as a tall screen. Great vertical evergreen accent.
PropagationPropagated through grafting onto straight sylvestris, or through the rooting of cuttings in a misting bed. Cuttings take approximately 2-3 months to root.
CultivationPerforms best with full sun and adequately moist, well-drained, slightly acidic sandy soil. However this cultivar is not particular to soil type, or pH. Very high tolerance for pollution and drought.
PestsSusceptible to pine bark beetle and Diplodia tip blight.
Notable SpecimensUniversity of Guelph Arboretum, Guelph, Ontario, Canada. The Gardens of Fanshawe College, London, Ontario, Canada.
HabitatNaturally occurring forma in some Eastern European countries.
Bark/Stem DescriptionYoung growth is light to dark grey with distinct ridges. Develops shaggy, exfoliating orange and grey-brown with maturity.
Flower/Leaf Bud DescriptionBuds are conical and resinous. Between 1-4 cm both in length and width but are slightly longer than they are wide. Buds are orange to a light reddish-brown in colour.
Leaf DescriptionBlue-green, needle-like foliage borne in fascicles of two, 2-3 cm long. Needles have a slight twist, as well as bloom on the foliage. Needles are arranged in a whorled pattern and are somewhat lax to the touch.
Flower DescriptionMale strobili bare pollen in May. Female strobili turn into small green cones. Flowers are not ornamentally significant, 5-15 mm in length and width.
Fruit DescriptionMale cones are 3-6 cm in length, reddish-brown and produce an abundant amount of pollen in May. Female cones 4-8 cm long, cordate to lancelate with distinct nubs reminiscent of the straight species. Female cones are reddish-brown to grey in colour.
Colour DescriptionFoliage is a matte green colour with a bluish-grey bloom giving it a blue-green appearance. Bark is orange, brown and grey. Buds are orange to light brown, and cones are grey or brown in colour.
Texture DescriptionMedium-coarse in foliage, and coarse in bark year-round.

Photographs