General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5b -26.1 °C (-15 °F) to -23.3 °C (-10 °F)
Maximum recommended zone: Zone 8b
Plant Height: 30 to 40 feet or higher
Plant Spread: 20 to 30 feet
Leaves: Semi-evergreen
Other: Bright green with soft, silvery undersides. Leaves are 7 to 12 inches wide and 12 to 32 inches long.
Fruit: Other: 2 to 3 inch, oval, red, egg shaped fruits.
Flowers: Showy
Flower Color: White
Other: White with a slight rose tint at the base.
Bloom Size: 6"-12"
Flower Time: Spring
Late spring or early summer
Underground structures: Taproot
Uses: Shade Tree
Wildlife Attractant: Birds
Resistances: Pollution
Humidity tolerant
Propagation: Other methods: Cuttings: Stem
Pollinators: Beetles
Awards and Recognitions: Other: 2006 Great Plant Picks Award Winner

Common names
  • Bigleaf Magnolia
  • Large-Leaved Cucumber Tree
  • Magnolia
  • Large-leaved Umbrella Tree

Photo Gallery
Location: Smith-Gilbert Gardens, Kennesaw GA
Date: 2022-05-07

Date: 2021-05-23
Hand added for scale of bloom
Location: Smith-Gilbert Gardens, Kennesaw GA
Date: 2022-05-07
Location: Towson, MD
Date: 2019-05-24
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2019-05-08
Bigleaf Magnolia - Magnolia macrophylla 001
Location: Mississippi
Date: 2013-05-11
Location: Vienna, VA
Date: 2017-07-31
Location: Southern Pines, NC (Gulley's Garden center)
Date: May 4, 2023
Bigleaf Magnolia (Magnolia macrophylla) #tba
Location: West Chester, Pennsylvania
Date: 2012-06-04
old specimen
Location: West Chester, Pennsylvania
Date: 2012-06-04
foliage and a white flower

Date: c. 1990
photo by Rácz and Debreczy from 'Arnoldia', 1990

Date: c. 1865
illustration by P. J. Redouté from Michaux's 'The North American
Location: Vienna, VA
Date: 2017-07-31
Location: West Chester, Pennsylvania
Date: 2012-06-04
foliage and white flower
Location: Mississippi
Date: 2015-05-29
Seedlings during 1st year of growth
Location: Birmingham Botanical garden 
Date: 2015-10-23
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jan 30, 2018 3:23 PM concerning plant:
    I've only seen one tree of this species in a large front yard with an old house from the early 1800's in southeast Pennsylvania. It does have large leaves of 12 to 32 inches long x 7 to 12 inches wide that are bright green above and silvery-gray and downy beneath. It bears white, fragrant, solitary flowers about 8 to 14 inches wide in June. It also bears egg-shaped rose-colored follicle fruits in late summer. It is an uncommon species that occurs in spots from Ohio to Florida west to Arkansas and Louisiana.
Plant Events from our members
WebTucker On May 3, 2023 Obtained plant
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Discussion Threads about this plant
Thread Title Last Reply Replies
Big leaves and big bloom! by arctangent Dec 14, 2020 6:50 PM 1

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