Magnolia

Magnolia black

Magnoliaceae · broadleaf deciduous shrub · introduced

Last updated March 8, 2026

Bacterial BlightHigh

Spring Infection Period

Verticillium WiltHigh

Root Colonization Period

Powdery MildewModerate

Spring Emergence / Primary Infection

Diseases: Regionally Documented (5)

Pseudomonas syringae pv. syringae Bacterial Blight Symptom category — not a single disease Leaf Spot Multiple obligate biotrophic fungi (Erysiphales: Erysipha... Powdery Mildew Root and Cutting Rots Verticillium dahliae Verticillium Wilt

Cultivars (1)

'Tulip'

Common name: Black Tulip Magnolia; Mature height: 20 ft

Hardy to USDA Zone 5

Data Maturity

Baseline Extension data. Expert review underway.