Due to its susceptibility to emerald ash borer (EAB), white ash is not recommended for planting anywhere in this region and usually requires removal and/or replacement. White ash, a native woodland tree found throughout the Midwest, had been used extensively as a shade and street tree. This species is native to the Chicago region according to Swink and Wilhelm’s Plants of the Chicago Region, with updates made according to current research.
- Family (English) Olive
- Family (botanic) Oleaceae
- Tree or plant type Tree
- Foliage Deciduous (seasonally loses leaves)
- Native locale Chicago area, Illinois, North America
- Size range Large tree (more than 40 feet)
- Mature height 50-80 feet
- Mature width 50-80 feet
- Light exposure Full sun (6 hrs direct light daily)
- Hardiness zones Zone 3, Zone 4, Zone 5 (Northern Illinois), Zone 6 (City of Chicago), Zone 7, Zone 8, Zone 9
- Soil preference Moist, well-drained soil
- Tolerances Alkaline soil, Clay soil, Dry sites, Road salt
- Season of interest mid fall, late fall
- Flower color and fragrance Inconspicuous
- Shape or form Round
- Growth rate Moderate
- Transplants well Yes
- Planting considerations Weak wood and branch structure
- Wildlife Game birds, Insect pollinators, Mammals, Migrant birds, Sapsuckers, Songbirds
- Has cultivars Yes
