Fraxinus quadrangulata
Blue ash · also Four-angled ash
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Fraxinus quadrangulata, or blue ash, is native to the central and eastern United States. It features square twigs with corky ridges, large pinnately compound leaves, and tolerates dry, limestone-based soils. While hardy, it is vulnerable to the emerald ash borer, limiting its use in new plantings.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 220.00%—12 in
- 160.00%—19 in
- 100.00%—21 in
- 70.00%—13 in
- 70.01%—4.7 in
- 70.01%7.8 yr10 in
- 60.00%—26 in
- 60.00%43 yr6.9 in
- 50.00%—7.5 in
- 10.00%——
Traits
- Foliage
- Deciduous
- Mature height
- 50–80 ft
- Canopy spread
- 35–60 ft
- Growth rate
- Fast
- Soil
- Calcareous, Limestone, Moist
- Water needs
- Moderate
- Drought tolerance
- High
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 13 in, mean 16 in, 90th percentile 27 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Temperate Grasslands, Savannas & Shrublands
- Central US forest-grasslands transition
- Central Tallgrass prairie
- Central-Southern US mixed grasslands
- Northern Tallgrass prairie
Temperate Broadleaf & Mixed Forests
- Appalachian-Blue Ridge forests
- Mississippi lowland forests
Other Fraxinus in the catalogue
20 of the top 2,000 species are in this genus.
