Family: Juglandaceae (joo-glan-DAY-see-ee) (Info)
Genus: Juglans (JOO-glanz) (Info)
Species: nigra (NY-gruh) (Info)
Cultivar: Black Gem
Additional cultivar information: (aka Stark® Black Gem®)
 One member has or wants this plant for trade.
Category:
Edible Fruits and Nuts
Trees
Height:
over 40 ft. (12 m)
Spacing:
over 40 ft. (12 m)
Hardiness:
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure:
Full Sun
Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color:
Chartreuse (Yellow-Green)
Bloom Time:
Late Spring/Early Summer
Foliage:
Deciduous
Aromatic
Other details:
Average Water Needs; Water regularly; do not overwater
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
Patent Information:
Unknown - Tell us
Propagation Methods:
From seed; direct sow outdoors in fall
Seed Collecting:
Remove fleshy coating on seeds before storing
Wear gloves to protect hands when handling seeds
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