Juglans nigra
Juglandaceae
Prized for lumber production. Prefers soil with humus/organic material. Produces large quantity of edible nuts which may be high maintenance. Roots produce juglone, which may reduce growth of some nearby plants.
Summary
Climate Tolerance
Very Good
Wildlife Benefits
Nuts food source for small mammals; moth/butterfly host
Pollination Type
Wind
Plant Hardiness Zones
4 to 9
# Butterfly/Moths that use as host
136
Bloom Time
Spring (Apr-May)
Shade/Sun Tolerance
Full Sun: Receives 6 or more hours of direct sunlight
Maximum Height
Medium (40-75 ft)
Growth Rate
Rapid: 2 ft or greater 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.
Silt: Medium sized particles. Moderate moisture retention and high nutrient availability.
Soil Moisture Tolerance
Moist: Soil can remain damp and does not normally retain standing water
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
Medium: Tree can adapt to a few urban conditions and will generally grow well
Drought Tolerance
Tolerant: Tree will not become stressed during periods of drought
Coefficient of Conservatism
5
Native Status
OH-Native: Species is native to Ohio
NatureServe G-rank
G5
Plant Community Type
- Beech Mixed: Common
- Oak Mixed: Rare
- Alluvial: Abundant
- Red Maple Mixed: Rare
- Ruderal: Rare
- Urban Tree Cover: Common
Bloom Color
Yellow
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
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
Cuyahoga
Geauga
Lake
Lorain
Medina
Portage
Summit
IUCN Red List Assessment
Least Concern
