Blue Ash

Fraxinus quadrangulata
Oleaceae
Emerald ash borer presence makes this a less suitable species to plant. Native range in Ohio limited to western half on dry, calcareous soils. Susceptible to storm damage/winter breakage.

Summary

Climate Tolerance
NA
Wildlife Benefits
Seeds food source for birds, small mammals; moth/butterfly host
Pollination Type
Wind
Plant Hardiness Zones
4 to 7
# Butterfly/Moths that use as host
135
Bloom Time
Spring (Apr-May)
Shade/Sun Tolerance
Full Sun to Part Shade: Receives 2 to 6 or more hours of direct sunlight
Maximum Height
Medium (40-75 ft)
Growth Rate
Moderate: 1 ft- 2 ft per year
Soil Type
Clay: Small sized particles. Long moisture retention and low nutrient availability.
Loam: Equal mix of clay, sand, and silt. Moderate moisture retention and high nutrient availability.
Soil Moisture Tolerance
Moist - Wet
Root - Fungal Association
Arbuscular mycorrhizae: Symbiotic relationship with fungi that exist on inside of plant root cells, facilitating nutrient uptake
Pest & Pathogen Risks
High; Emerald ash borer
Urban Stress Tolerance
Low: Tree will not grow well in the urban environment
Drought Tolerance
Tolerant: Tree will not become stressed during periods of drought
Coefficient of Conservatism
7
Native Status
OH-Native: Species is native to Ohio
NatureServe G-rank
G4
Plant Community Type
  • Beech Mixed: Absent
  • Oak Mixed: Absent
  • Alluvial: Absent
  • Red Maple Mixed: Absent
  • Ruderal: Absent
Bloom Color
Brown
Green
Purple
Form
Tree
Lifespan
Long: Greater than 250 years
Soil pH
Circumneutral (pH 6.8-7.2)
Wetland Indicator Status
FACU: Facultative Upland, usually occurs in non-wetlands, but may occur in wetlands
Soil Compaction Tolerance
Sensitive: Tree will become stressed from soil being compacted
Heat Tolerance
Tolerant: Tree will not become stressed for increased temperature due to urban heat island effects
Salt Tolerant
Tolerant: Tolerant to both aerial salt spray and salt present in soil
Native County Status
Not Native to NE Ohio
IUCN Red List Assessment
Critically Endangered