Southern California Black Walnut

Juglanscalifornica

Family
Juglandaceae (joo-glan-DAY-see-ee)
Genus
Juglans (JOO-glanz)
Species
californica (kal-ih-FOR-nik-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
Shiny/Glossy
Height
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)
over 40 ft. (12 m)
Spacing
30-40 ft. (9-12 m)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Green
Bloom Time
Late Spring/Early Summer
Other Details
Category
Edible Fruits and Nuts
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
Patent Information
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
Regional

This plant is said to grow outdoors in the following regions:

Calabasas, California

Los Angeles, California

Malibu, California

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Fremont, CA | January 2005 | positive

Here at Ardenwood Historic Farm, we have many California Black Walnut trees. Many of these trees have become large and stately and line e...Read More

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