Kentucky Coffee Tree

Gymnocladus dioicus
Fabaceae
Primarily grows on alkaline soils in western half of Ohio, but tolerates wide range of soil conditions. Not suitable for restoration plantings. Seed pods may be messy to maintain.

Summary

Climate Tolerance
NA
Wildlife Benefits
Nectar/pollen source for bees, butterflies, hummingbirds
Pollination Type
Pollinator
Plant Hardiness Zones
3 to 8
# Butterfly/Moths that use as host
Unknown
Bloom Time
Spring (May-Jun)
Shade/Sun Tolerance
Full Sun: Receives 6 or more hours of direct sunlight
Maximum Height
Large (75-100 ft)
Growth Rate
Slow: 1 ft or less per year
Soil Type
Loam: Equal mix of clay, sand, and silt. Moderate moisture retention and high nutrient availability.
Soil Moisture Tolerance
Moist - Dry: Soil can be damp for periods of time and can retain little to no water for periods of time
Root - Fungal Association
Arbuscular mycorrhizae: Symbiotic relationship with fungi that exist on inside of plant root cells, facilitating nutrient uptake
Pest & Pathogen Risks
Very Low
Urban Stress Tolerance
High: Tree can adapt to a variety of urban conditions and will grow well
Drought Tolerance
Tolerant: Tree will not become stressed during periods of drought
Coefficient of Conservatism
3
Native Status
OH-Native: Species is native to Ohio
NatureServe G-rank
G5
Plant Community Type
  • Beech Mixed: Absent
  • Oak Mixed: Absent
  • Alluvial: Absent
  • Red Maple Mixed: Absent
  • Ruderal: Absent
  • Urban Tree Cover: Common
Bloom Color
Brown
Green
White
Form
Tree
Lifespan
Medium: 100-250 years
Soil pH
Circumneutral (pH 6.8-7.2)
Wetland Indicator Status
NONE
Soil Compaction Tolerance
Tolerant: Tree will not 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
Lake
Lorain
Medina
IUCN Red List Assessment
Vulnerable