Pinus strobus 'Nana' (Dwarf White Pine)


Michael's Opinion

A soft textured, loose mounds form suited to the front of a landscape border.

Botanical Information

FamilyPinaceae
GenusPinus
Speciesstrobus
Cultivar'Nana'
CategoryWoody
TypeShrub (evergreen)
OriginPinus strobus (Nana Group) is used by many nurseries as a catchall term for describing a group of compact, shrubby, mounded, irregularly branched, spreading, dwarf forms of Eastern White Pine.
Pronunciation

Details

USDA Hardiness Zone3 - 8
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 7a
Canada Hardiness Ref.
RHS Hardiness ZoneH5 - H7
RHS Hardiness Ref.
Temperature (°C)-40 - (-9)
Temperature (°F)-40 - 15
Height1.75 - 2.5 m
Spread1 - 3.5 m
GrowthSlow
Flowering PeriodApril, May

Description and Growing Information

General DescriptionVariable in form because of propagation from a variety of sources. Loosely encircled to rounded form with soft needles.
ID CharacteristicSmalls plants composed of long needles in bunches of 2-5. Produces cones in early years.
ShapeCompact, shrubby, mounded, irregularly branched, and spreading. Very small and rounded.
LandscapeMakes a good specimen plant. It can also be used as a low informal hedge for mass planting. It is not salt tolerant.
PropagationGrafting onto P. stobus understock.
CultivationPrefers full sun but can grow in partial shade. Likes sandy, loamy soils. Irrigate until established. Once established it is drought resistant.
PestsMay be susceptible to white pine adelgid, aphids, bark beetle and root-rot if growing conditions are not suitable. Not tolerant to pollution and salt.
Notable SpecimensThe Gardens of Fanshawe College, London, Ontario, Canada. The Niagara Parks Botanical Gardens, Niagara Falls, Ontario, Canada.
HabitatHorticultural origin.
Bark/Stem DescriptionDark grey–brown bark. Weak wooded. Deep rectangular plates.
Leaf DescriptionFoliage is medium in texture. Long needle leaves, in fascicles of 2–5, but typically 5, needles are 3–5 cm long.
Flower DescriptionNot showy; monoecious, with staminate flowers in clustered yellow catkins, pistillate flowers as pink immature cones, in April and early May.
Fruit DescriptionCones are slightly curved, red–brown in colour and 3-5 cm long. They hang from the branches end and are pendulous in nature. The scales on the cone are thin.
Colour DescriptionDark green to silvery-blue needles. Dark grey–brown bark.
Texture DescriptionCoarse.

Photographs