Eucommia ulmoides
Hardy Rubber Tree
Eucommiaceae
ExpandHabitat
- native to central China
- hardy to zone 5, and warmer parts of 4
Habit and Form
- a large, deciduous tree
- 40' to 60' tall
- width is greater than height
- rounded habit
- medium growth rate
- medium texture
Summer Foliage
- alternate leaf arrangement
- simple, deciduous leaves
- 3" to 6" long
- 1.5" to 3" wide
- ovate leaf shape
- serrate leaf margins
- dark green leaf color
- rough texture
- rubbery substance when leaf is broken
Autumn Foliage
- none, leaves fall green
Flowers
- dioecious
- no ornamental significance
Fruit
- brown, capsule-like with appressed wings
- looks like a large, plump, elm fruit
- 1.5" long
- notched apex
- 1 seed
Bark
- ridge and furrowed gray-brown bark
- attractive
- branches end in leaf
Culture
- easily transplanted
- soil tolerant
- full sun
- pH adaptable
- somewhat urban tolerant
Landscape Use
- shade tree
- park tree
- for high quality foliage
- street tree
Liabilities
- none serious
ID Features
- imbricate, sessile buds
- no terminal buds
- ovate leaf shape with serrated leaf margin
- waxy substance when leaf is broken
Propagation
- by seed
- by cuttings
Cultivars/Varieties
- none