Magnolia macrophylla (Bigleaf Magnolia, Large-Leaved Cucumber Tree)


Botanical Information

FamilyMagnoliaceae
GenusMagnolia
Speciesmacrophylla
OriginSoutheastern United States.

Details

USDA Hardiness Zone5 - 8
USDA Hardiness Ref.
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-20
Temperature (°F)-5
Height10 - 12 m
Spread10 - 12 m
GrowthSlow
Flowering PeriodMay, June

Description and Growing Information

General DescriptionA very large evergreen tree with huge broad leaves.
ShapeUpright pyramidal with a spreading rounding crown.
LandscapeAs a specimen or as a flowering tree centrepiece in a large-scale garden.
PropagationBy seed.
CultivationGrow under full sun to partial shade in moist, humus-rich soils of any acidity. Keep sheltered from strong winds.
Notable SpecimensVanDusen Botanical Garden, Vancouver, British Columbia, Canada.
Bark/Stem DescriptionSmooth slightly exfoliating bark with slight moss-like discolourations.
Leaf DescriptionVery large oblong-ovate leaves that can grow up to 60 cm long and 40 cm wide.
Flower DescriptionCupped blooms that can measure up to 20 cm in diameter.
Fruit DescriptionCone-like sphere-shaped fruits appear once the blooms fall.
Colour DescriptionLeaves are lush green on the upperside and silvery-green on the underside. Bark is a greyish-brown with slight pastel green discolourations. Stems are greenish-brown. New growth is lush green. Blooms are rose-white with purple near the middle. Red fruits.

Photographs