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Regal elm

The tall regal elm has good Dutch elm disease (DED) resistance. It can be used as a specimen or in groups for streets, parks, and large yards. This hybrid is a University of Wisconsin introduction.

Botanical name:

Ulmus 'Regal'

All Common Names:

Regal elm

Family (English):

Elm

Family (Botanic):

Ulmaceae

Planting Site:

  • Residential and parks,
  • City parkway,
  • Wide median,
  • Restricted sites

Tree or Plant Type:

  • Tree

Foliage:

  • Deciduous (seasonally loses leaves)

Native Locale:

  • Non-native

Landscape Uses:

  • Parkway/street,
  • Shade tree,
  • Specimen

Size Range:

  • Large tree (more than 40 feet)

Mature Height:

50-60 feet

Mature Width:

50-60 feet

Light Exposure:

  • Full sun (6 hrs direct light daily)

Hardiness Zones:

  • Zone 4,
  • Zone 5 (Chicago),
  • Zone 6,
  • Zone 7

Soil Preference:

  • Moist, well-drained soil

Tolerances:

  • Dry sites,
  • Occasional drought,
  • Wet sites,
  • Occasional flooding,
  • Alkaline soil,
  • Clay soil,
  • Road salt

Acid Soils:

  • Tolerant

Alkaline Soils:

  • Tolerant

Salt Spray:

  • Moderately Tolerant

Soil Salt:

  • Moderately Tolerant

Drought Conditions:

  • Tolerant

Poor Drainage:

  • Tolerant

Planting Considerations:

  • Highly susceptible to ice damage

Flower Color & Fragrance:

  • Inconspicuous

Shape or Form:

  • Oval,
  • Pyramidal

Growth Rate:

  • Moderate

Transplants Well:

  • Yes

Wildlife:

  • Migrant birds

More Information:

Tree & Plant Care

Prefers a moist, well-drained soil.
Do not prune elm trees between mid-April and mid-October.

Disease, pests, and problems

May be attacked by elm yellows, gypsy moth, and elm leaf beetle.

Disease, pest, and problem resistance

Resistant to Dutch elm disease.

Native geographic location and habitat

Of hybrid origin.

Bark color and texture 

Bark is gray, ridged and furrowed.

Leaf or needle arrangement, size, shape, and texture

Alternate leaves with toothed edges; shiny dark green in summer.
No fall color.

Flower arrangement, shape, and size

Flowers are green and inconspicuous, appearing in early spring.

Fruit, cone, nut, and seed descriptions

Seeds enclosed in a flat, circular wing.

Location of Ulmus 'Regal' (Regal elm) at the Arboretum

We do not seem to have this in our living collection.