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PlantSnap
Plant Care
Southern magnolia
(Magnolia grandiflora)
Also Known As
Southern magnolia, Evergreen magnolia, Bull bay
About This Plant
Magnolia grandiflora is a large evergreen tree with glossy, leathery leaves and fragrant, showy white flowers. It is native to the southeastern United States.
Plant Care Instructions
Outdoor Size Range
60-80 feet (18-24 meters) tall, 30-50 feet (9-15 meters) wide
Light Requirements
Magnolia grandiflora prefers full sun to partial shade. It can tolerate some shade but will produce fewer flowers in those conditions.
Humidity Needs
Magnolia grandiflora prefers moderate to high humidity levels.
Fertilizing Schedule
Fertilize in early spring before new growth begins using a balanced fertilizer. Repeat the application in late spring or early summer if necessary.
Pruning Guidelines
Prune in late winter or early spring before new growth begins. Remove any dead or damaged branches and thin out crowded areas to improve air circulation.
Common Pests and Diseases
Magnolia grandiflora is generally pest and disease resistant, but it can be susceptible to scale insects, spider mites, and magnolia scale.
Indoor Size Range
N/A
Watering Schedule
This plant prefers consistently moist but well-drained soil. Water deeply and regularly during the first growing season to establish an extensive root system.
Temperature Range
This plant can tolerate a wide range of temperatures, but it prefers mild to warm temperatures. It can tolerate brief periods of frost but is not cold hardy.
Growing Season
Late spring to early summer
Growing Difficulty Level
Moderate
USDA Hardiness Zones
7-10
Did You Know?
The Magnolia grandiflora is the state flower of Louisiana and Mississippi.
