This fast-growing cultivar is extremely tolerant of drought and cold. The COMMENDATION™ elm is resistant to Dutch elm disease (DED) but moderately susceptible to insect problems, notably elm leaf beetle, Japanese beetle, and gypsy moth. Use along streets and in large yards. The Morton Arboretum introduced this cultivar through Chicagoland Grows®.
All common names:
- Residential and parks,
- City parkway,
- Wide median,
- Restricted sites
Tree or Plant Type:
- Deciduous (seasonally loses leaves)
- Shade tree,
- Large tree (more than 40 feet)
- Full sun (6 hrs direct light daily)
- Zone 4,
- Zone 5 (Chicago),
- Zone 6,
- Zone 7,
- Zone 8,
- Zone 9
- Moist, well-drained soil
- Dry sites,
- Occasional drought,
- Wet sites,
- Alkaline soil,
- Clay soil,
- Road salt
- Fall color
Seasons of Interest:
- early fall,
- mid fall
Flower Color & Fragrance:
Shape or Form:
- Migrant birds
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 gypsy moth, Japanese beetle and elm leaf beetle.
Disease, pest, and problem resistance
Very good resistance to Dutch elm disease and resistance to elm yellows.
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.
Fall color is yellow.
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.