Black Walnut

Black Walnut

Juglans nigra

A native tree with strong landscape value and excellent long-term performance.

  • Tall, oval to rounded growth habit
  • Large pinnate compound leaves emerge late in spring and drop early fall
  • Foliage colour is dark green in the summer, becoming yellow in early fall
  • Nut are encased in yellow-green husks, maturing in autumn
  • Commonly used for naturalizing, specimen
  • Grows best in full sun
Size
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Plant Characteristics

Sunlight
Full sun
Soil Moisture
Moist, Wet, Average, Well-drained
Drought Tolerant
Hardiness Zone
3 – 3
Mature Height (meters)
18.0 – 25.0
Mature Spread (meters)
16.0 – 18.0
Growth Rate
Fast
Foliage Colour
Green
Fall Colour
Yellow
Bloom Time
Spring
Habit
Mounding
Rabbit Resistant
Attracts Birds
Ontario Native
Fragrant
Landscape Uses
Mass planting, Accent
Growing & Maintenance Tips
A great tree for larger landscapes and natural areas. Placement should be considered as the litter from the nuts can be messy. Juglans produce the chemical juglone, and many plants are highly sensitive to this chemical. Look for plants with a tolerance to the toxicity near or under juglans. A great tree for attracting squirrels.

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