Ulmus parvifolia, the Chinese Elm, is a semi deciduous shade tree with a vase shaped crown and gracefully arching outer branches. The small glossy serrated leaves turn yellow through bronze before falling, and the trunk sheds patches of bark to leave a mottled pattern of grey, cream and tan.
It reaches up to 15 metres tall and 8 to 10 metres wide, adding roughly 50 to 80 centimetres a year. Full sun to part shade suits it, in any reasonably drained soil. Once established it handles frost, drought, wind, salt spray and the compacted ground of urban sites.
Councils and landscapers use it as a street tree, a car park tree and a shade tree in parks, and it works in larger home gardens where a broad canopy is wanted. Formative pruning over the first few years sets the branch structure, after which it asks very little.
Frequently Asked Questions
About Chinese Elm
What is a Chinese Elm?
Ulmus parvifolia is a semi deciduous shade tree from China, Korea and Japan, grown here for its vase shaped crown, small glossy serrated leaves and mottled bark that flakes away to reveal cream and tan patches. It is one of the more urban tolerant deciduous trees available in Australia and is planted widely in streets and parks.
How big does a Chinese Elm grow?
It reaches up to 15 metres tall with a canopy 8 to 10 metres wide in good conditions. In restricted street plantings and shallow soils it usually settles well short of that. Allow at least 8 metres of clear space around the trunk if you want the full arching form to develop.
How fast does a Chinese Elm grow?
Around 50 to 80 centimetres a year, which is moderate to fast for a deciduous shade tree. Growth is quickest in the first ten years and slows as the crown broadens. Advanced trees in larger containers give a usable canopy sooner, which matters on projects where shade is wanted early.
Is a Chinese Elm evergreen or deciduous?
It is semi deciduous. In cool districts it drops its leaves properly through winter after colouring yellow and bronze. In warmer coastal and subtropical areas it often holds much of its foliage, shedding briefly in late winter as the new leaves push through. Either way the bare period is short.
Is a Chinese Elm suitable for coastal positions?
Yes. It tolerates salt laden wind better than most deciduous trees, which is why it turns up in beachside streetscapes along the east coast. Plant it behind the first line of dunes rather than in full frontal exposure, and water it through the first two summers while the roots establish.
Does a Chinese Elm have invasive roots?
Its roots are less aggressive than those of many large elms, but it is still a substantial tree. Keep it at least 4 to 5 metres from house footings, paving and service trenches, and further again from older drainage lines. In street verges use a root barrier or a structural soil cell.
How do I care for a Chinese Elm?
Water deeply through the first two summers, mulch out to the drip line and keep the mulch off the trunk. Prune in late winter while the tree is bare, removing crossing limbs and lifting the canopy over paths. Once established it needs little beyond an occasional check for deadwood.