Dutch Elm

Ulmus hollandica

Ulmaceae · broadleaf deciduous tree · introduced

Last updated March 8, 2026

Data Coverage 2 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Height

55 ft

Light

Full Sun

Hardiness

Zone Zones 4–5

Diseases (4)

Neonectria ditissima Nectria Canker Ophiostoma novo-ulmi Dutch Elm Disease Enterobacter cloacae Bacterial Wetwood Slime Flux Enterobacter cloacae and Klebsiella pneumoniae Bacterial Wetwood

Pests (10)

Aphidoidea Aphid Scolytinae Bark beetle Nymphalis antiopa Spiny elm caterpillar Gossyparia spuria European elm scale Fenusa ulmi Elm leafminer Xanthogaleruca luteola Elm leaf beetle Prionoxystus robiniae Carpenterworm Hyphantria cunea Fall webworm Lepidosaphes ulmi Oystershell scale Spiny elm caterpillar (mourning cloak butterfly)