Shellbark Hickory
Carya laciniosa

Description

Carya laciniosa, or shellbark hickory, is native to Ontario and ranges throughout North America, specifically from New York and southern Ontario south to Tennessee and Oklahoma. This species is a slow-growing, long-lived tree valued for its sweet, edible nuts. It prefers well-drained, moist conditions, and partial to full sun. Since it requires ample space to thrive, it�s a great choice for larger landscapes. Known for its deep taproot, transplanting can be challenging. Tolerant of occasional flooding and wet sites, it attracts wildlife like birds, small animals, and browsers. Although it faces few serious pest or disease issues, it can occasionally be affected by the hickory bark beetle, pecan weevil, twig girdler, and hickory shuck worm, which may reduce seed production. With its large nuts (largest amongst hickory trees), thick husks, and exfoliating bark, the shellbark hickory can be messy, but its beauty and wildlife benefits make it a valuable addition to plantings. Currently limited availability in the landscape, but with proper seed collection can become more available.
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Planting Site and Native Range

Planting Site
Naturalization, Parks, Residential, Wide Median

Management Notes

Management Notes
Fruit litter may be an issue

Tree Characteristics

Growth Rate
Slow (less than 30cm per year)
Width
12 - 18m
Height
18 - 24m
Soil Quantity
>30 m
Leaves
Deciduous

Insects and Diseases

Insects and Diseases
No serious or common issues in the urban environment. During drought Hickory bark beetle can be a problem for stressed trees.

Tree Tolerances

Soil Salt Tolerance
Unknown
Salt Spray Tolerance
Unknown
Flooding Tolerance
Moderate
Drought Tolerance
Moderate
pH Tolerance
Tolerant of acid to slightly alkaline soil (pH 5.0 to 7.5)
Shade Tolerance
Full Sun Part Shade
Plant Hardiness Zone
Zone 5 (a/b) | Zone 6 (a/b)
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