Magnolia grandiflora
Overview
The Southern Magnolia is one of the most iconic trees of the American South. Known for its large fragrant flowers, glossy evergreen leaves, and impressive size, it has been a beloved ornamental tree for generations. Its striking appearance and year-round foliage make it a standout feature in landscapes, parks, campuses, and arboretums.
Native to the southeastern United States, Southern Magnolia is valued for both its beauty and longevity. Mature trees develop broad pyramidal crowns and can become magnificent specimens that provide shade, wildlife habitat, and visual interest throughout every season.
Identification
Leaves
- Evergreen leaves that remain on the tree year-round
- Thick, leathery texture
- Dark green and glossy upper surface
- Rusty-brown or cinnamon-colored undersides
- Typically 5 to 10 inches long
Bark
- Gray to gray-brown bark
- Relatively smooth on young trees
- Develops light ridges and furrows with age
Flowers
- Large, creamy white flowers
- Exceptionally fragrant
- Typically 8 to 12 inches across
- Bloom from late spring through summer
- Among the largest flowers produced by any native North American tree
Fruit
- Cone-like seed structures
- Mature from green to brown
- Release bright red seeds in late summer and autumn
- Seeds attract birds and other wildlife
Size
- Typically grows 60 to 80 feet tall
- Can exceed 100 feet in favorable conditions
- Mature spread of 30 to 50 feet
Native Range
Southern Magnolia is native to the southeastern United States, particularly the Coastal Plain from North Carolina to eastern Texas. It naturally occurs in mixed forests, bottomlands, and moist woodland habitats.
Within the Marshall University Arboretum, Southern Magnolia is classified as a United States Native species because it is native to the United States but not considered part of the arboretum’s Appalachia Native category.
Ecology and Wildlife Value
Southern Magnolia provides important habitat and food resources for wildlife.
Its flowers attract:
- Native bees
- Beetles
- Other pollinating insects
Its seeds are consumed by:
- Songbirds
- Wild turkeys
- Squirrels
- Various small mammals
The dense evergreen canopy provides year-round shelter, nesting sites, and protection from weather for a variety of wildlife species.
Human Uses and Cultural Significance
Southern Magnolia has become one of the most recognized ornamental trees in North America.
It is valued for:
- Large fragrant flowers
- Evergreen foliage
- Attractive form
- Longevity
- Year-round landscape interest
The wood has historically been used for:
- Furniture
- Veneer
- Interior millwork
- Cabinetry
Southern Magnolia is frequently associated with historic landscapes, university campuses, public gardens, and southern architecture.
Southern Magnolia at Marshall University
Southern Magnolias add year-round color and distinctive beauty to the Marshall University Arboretum. Their glossy evergreen leaves provide contrast to the many deciduous trees found on campus, while their large white flowers create one of the arboretum’s most spectacular floral displays.
As a United States-native species originating from the Southeast, Southern Magnolia highlights the diversity of American trees beyond the Appalachian region and demonstrates the broad geographic range represented within the arboretum collection.
Quick Facts
Common Name: Southern Magnolia
Scientific Name: Magnolia grandiflora
Family: Magnoliaceae
Native Region: United States Native
Mature Height: 60-80 feet (occasionally 100+ feet)
Mature Spread: 30-50 feet
Growth Rate: Slow to Moderate
Sun Requirements: Full Sun to Partial Shade
Soil Preferences: Moist, well-drained, slightly acidic soils
USDA Hardiness Zones: 6-10
Bloom Period: May to August
Fruit/Seed: Cone-like fruits containing bright red seeds
Wildlife Value: Provides food, cover, nesting habitat, and pollinator resources
Notable Characteristics: Large fragrant flowers, evergreen foliage, and glossy leaves with rusty undersides