Eucommia ulmoides
Hardy Rubber Tree
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Hardy Rubber Tree (Eucommia ulmoides) - Description
E. ulmoides is native to central China. Rubber can be produced from this tree's sap, but it is not an economically feasible process. It's leaes resemble those of elm, but are glossier and more leathery.
Hardy Rubber Tree (Eucommia ulmoides) - Blooming
Flowers and fruits are inconspicuous.
Hardy Rubber Tree (Eucommia ulmoides) - Growth
Deciduous tree. Eucommia does best with full sun and shelter from cold, dry winds. It is hardy to up to -22F and is does well in urban conditions. Works best as a specimen tree.
Hardy Rubber Tree (Eucommia ulmoides) - Planting
Sow seeds in a seedbed in fall, as Eucommia requires stratification to germinate. You can also propagate with greenwood cuttings under glass, which root in summer. Greenwood cuttings are taken from shoot-tips of plants, and are harder than softwood cuttings.
Hardy Rubber Tree (Eucommia ulmoides) - Pest
Pests are not a problem for Hardy Rubber Trees.
Hardy Rubber Tree (Eucommia ulmoides) - Interesting facts
The Hardy Rubber Tree is the only cold tolerant rubber producing tree, although it is not economical to harvest its sap. Its bark is also used as an herbal remedy. There is only one known species of Eucommia.
Hardy Rubber Tree (Eucommia ulmoides) - Soil and irrigation
Eucommia will tolerate most soils, but requires good drainage. Does best in fertile soil. Moderate to regular waterings benefit this plant's growth, but it is drought tolerant.
