Magnolia

Magnolia black

Magnoliaceae · broadleaf deciduous shrub · introduced

Last updated March 8, 2026

Data Coverage 2 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Diseases (5)

Pseudomonas syringae pv. syringae Bacterial Blight Symptom category — not a single disease Leaf Spot Podosphaera aphanis var. aphanis Powdery Mildew Phytophthora spp. and Pythium spp. 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