Bigleaf Magnolia
Magnolia macrophylla
Magnoliaceae · broadleaf deciduous tree · native
Last updated
Quick Facts
Height
30–40 ft
Spread
32 ft
Growth Rate
Slow
Light
Full Sun to Part Shade
Soil
Moist
Water
Moderate
Hardiness
Zone Zones 5a–8b
Bloom Time
May
Fall Color
Insignificant
Origin
from Ohio to Florida and west to Arkansas and Louisiana
Watch for this season
Bacterial BlightHigh
Spring Infection Period
Root Colonization Period
Powdery MildewModerate
Spring Emergence / Primary Infection
Field Observations
Field Observation
Magnolia macrophylla · Bigleaf Magnolia
new leaf
Phenological Calendar
| Stage | Typical Window |
|---|---|
| Leaf emergence BBCH 11 | — |
Diseases: Regionally Documented (5)
Data Maturity Baseline Extension data. Expert review underway.