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PlantFiles: Bigleaf Magnolia, Large-leaved Cucumber Tree
Magnolia macrophylla

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Family: Magnoliaceae
Genus: Magnolia (mag-NO-lee-a) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)

7 vendors have this plant for sale.

8 members have or want this plant for trade.

Category:
Trees

Height:
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)

Spacing:
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)

Hardiness:
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer

Foliage:
Deciduous
Smooth-Textured

Other details:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:
By sladeofsky

Thumbnail #1 of Magnolia macrophylla by sladeofsky

By growin

By treeguy_NY

By claypa

There are a total of 11 photos.
Click here to view them all!

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

Rating	Author	Comment
Positive	sladeofsky	On Aug 6, 2006, sladeofsky from Louisville, KY (Zone 6b) wrote: This is an amazing tree which is not as well known as it should be in the garden. With leaves up to 80cm. long it holds the record as the plant with the largest simple leaves in North America. And even though the evergreen Southern Magnolia has the honor of being named Magnolia Grandiflora, Magnolia Macrophylla has the largest single flower in North America. The gigantic leaves on the single stick saplings fool many as being banana trees. The Umbrella Magnolia which also has large leaves is sometimes confused with the Big Leaf Magnolia. Leaf shape is one easy way of differentiating. The Umbrella Magnolia has cuneate (wedge-shaped) leafe bases whereas the Big Leaf Magnolia has auriculate (ear-shaped) leaf bases. This is an understory forest tree. In cultivation it should be planted in a semi-sheltered site to protect it from strong winds which may shred its massive leaves. Plant this tree and you will soon fall in love with the sound of rain beginning to fall on its leaves in Spring and the gentle thud of the leaves falling in Autumn.

Regional...

This plant has been said to grow in the following regions:

Spanish Fort, Alabama
Los Altos, California
Atlanta, Georgia
Canton, Georgia
Lawrence, Kansas
Shawnee Mission, Kansas
Louisville, Kentucky
Pippa Passes, Kentucky
Slade, Kentucky
Moselle, Mississippi
Picayune, Mississippi
Exeter, New Hampshire
Highland, New York
Ithaca, New York
Youngsville, North Carolina
West Chester, Ohio
Tracy City, Tennessee
Haslet, Texas
Houston, Texas
Seattle, Washington
Eglon, West Virginia

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