Carya glabra

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Pignut Hickory


Plant Specifics

Size:30-100 ft tall by 30-50 (100) ft wide
Life Span:Long-lived perennial
Flower Color:Yellow,green
Fruit Color:Brown
Phenology:Deciduous. Inconspicuous blooms in spring. Yellow in fall. Nuts ripen in fall. Lfe span 200+ yrs (much older trees are known)
Noted for:Fall color, Interesting foliage, Hurricane wind resistance


Recommended Uses:Excellent specimen or shade tree in areas where its roots will not be disturbed.
Considerations:Does not tolerate root disturbance. The author has lost multiple trees due to a fungal root pathogen that was apparently able to enter the tree when roots were disturbed by vehicles and construction. Nut and leaf litter can be a problem in residential landscapes.
Availability:Native nurseries, FNPS plant sales, Seed
Light: Full Sun,  Part Shade
Moisture Tolerance:
always floodedextremely dry
 (Usually moist, occasional inundation ----- to ----- Very long very dry periods)
Moisture Tolerance: Usually moist, occasional inundation ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Low/no tolerance of salty wind or direct salt spray
Soil or other substrate:Loam, Sand
Soil pH:Mildly acidic to neutral



A favorite food of squirrels. 


Larval host for many moths including; luna moth (Actias luna), hickory leafroller moth (Argyrotaenia juglandana), royal walnut moth (Citheronia regalis), and walnut sphinx (Amorpha juglandis).

Native Habitats:Xeric hammock, mixed upland forest, pine-oak-hickory woods.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures


Ethnobotany:Nuts vary but in general, they are bitter.
General Comments:Called pignut because pigs eat the nuts.