TREES & plants

Hardy rubber-tree

Leaves of hardy rubber-tree.
Hardy rubber-tree, a native of China, can be used in the landscape as a shade tree. It has an attractive round to broad-spreading form and during summer, the thick leaves are a very glossy green.
Botanical name: 
Eucommia ulmoides
All Common Names: 
Hardy rubber-tree, Hardy rubber tree
Family (English): 
Hardy Rubber Tree
Family (Botanic): 
Tree or Plant Type: 
  • Tree
  • Deciduous (seasonally loses leaves)
Native Locale: 
  • Non-native
Planting Site: 
  • Residential and parks, 
  • City parkway, 
  • Wide median, 
  • Restricted sites
Landscape Uses: 
  • Parkway/street, 
  • Shade tree, 
  • Specimen
Size Range: 
  • Large tree (more than 40 feet)
Mature Height: 
40-60 feet
Mature Width: 
30-50 feet
Light Exposure: 
  • Full sun (6 hrs direct light daily), 
  • Partial sun/shade (4-6 hrs light daily)
Hardiness Zones: 
  • Zone 5 (Chicago), 
  • Zone 6, 
  • Zone 7
Soil Preference: 
  • Moist, well-drained soil
Acid Soils: 
  • Tolerant
Alkaline Soils: 
  • Tolerant
Salt Spray: 
  • Moderately Tolerant
Soil Salt: 
  • Moderately Tolerant
Drought Conditions: 
  • Tolerant
Poor Drainage: 
  • Tolerant
Flower Color & Fragrance: 
  • Inconspicuous
Shape or Form: 
  • Broad, 
  • Round
Growth Rate: 
  • Moderate
Transplants Well: 
  • No
More Information: 

Tree & Plant Care

This is a very low maintenance tree.
Best in full sun, pH soil tolerant.
Drought tolerant.
Branches can be prone to storm damage.

Disease, pests, and problems

No common problems.

Native geographic location and habitat

Native to China.

Bark color and texture 

The bark is gray brown, ridged and furrowed.

Leaf or needle arrangement, size, shape, and texture

Alternate, simple leaves resemble the leaves of elm, but are dark green and glossy.  The leaf when torn exhibits a elastic, rubber substance used to make rubber.
There is little to no color change in fall.

Flower arrangement, shape, and size

Male and female flowers are on separate trees (dioecious). 

Fruit, cone, nut, and seed descriptions

The fruit is a seed enclosed in a waxy wing capsule.

Cultivars and their differences

Emerald Point™ Hardy Rubber Tree (Eucommia ulmoides 'Empozam'):  A columnar, upright , narrow oval tree reaching 30-40 feet high and 15 feet wide. Seedless.

Eucommia ulmoides or Hardy rubber-tree