Plant Identifier
Southern Magnolia

Southern Magnolia

Magnolia grandiflora

Family: MagnoliaceaeNative: Southeastern United StatesIdentified: Sep 29, 2026

A large evergreen tree featuring large, dark green leathery leaves with rusty-brown undersides, and prominent, fragrant white flowers.

Light
Full sun to partial shade, ideally 6 or more hours of direct sunlight daily
Water
Requires moderate watering, about once a week once established; drought tolerant for short periods but performs best with consistent moisture
Growth
Perennial large evergreen tree with a pyramidal to rounded growth habit, reaching mature heights of 60 to 80 feet and a spread of 30 to 50 feet with a slow to moderate growth rate
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Care instructions

Provide full sun to partial shade, water regularly when young to establish a deep root system, and plant in rich, well-draining acidic soil. Apply a balanced slow-release fertilizer in spring.

Growing details

Sunlight

Full sun to partial shade, ideally 6 or more hours of direct sunlight daily

Watering

Requires moderate watering, about once a week once established; drought tolerant for short periods but performs best with consistent moisture

Soil

Prefers rich, moist, organic-rich soils with good drainage and an acidic to neutral pH range of 5.0 to 6.5

Hardiness zone

USDA Hardiness Zones 6 through 9

Growth habit

Perennial large evergreen tree with a pyramidal to rounded growth habit, reaching mature heights of 60 to 80 feet and a spread of 30 to 50 feet with a slow to moderate growth rate

Bloom season

Late spring through summer, producing large, cup-shaped, highly fragrant white flowers measuring up to 12 inches across

Propagation

Propagated primarily through semi-hardwood cuttings taken in summer or by seed stratified in cold conditions

Common pests & issues

Generally resilient, but may occasionally experience issues with scale insects, leaf spots, and powdery mildew, which can be managed with proper air circulation and standard horticultural treatments

Similar species

Sweetbay Magnolia (Magnolia virginiana), which has smaller leaves with silvery-white undersides and is more tolerant of wet soils