General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Dry
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 50 to 100 feet
Plant Spread: 30 to 50 feet
Leaves: Good fall color
Deciduous
Fruit: Other: pear-shaped nut enclosed in 4-ridged husk to 1.5 inches long
Fruiting Time: Late summer or early fall
Flowers: Inconspicuous
Blooms on old wood
Flower Color: Green
Other: Yellowish-green, drooping catkins
Flower Time: Spring
Underground structures: Taproot
Uses: Shade Tree
Will Naturalize
Useful for timber production
Edible Parts: Fruit
Wildlife Attractant: Birds
Other Beneficial Insects
Resistances: Drought tolerant
Propagation: Seeds: Self fertile
Stratify seeds: in moist medium at 33 to 40 F for 30 to 150 days
Other info: soak nuts in water for 2-4 days at room temp, change water each
Pollinators: Wind
Containers: Not suitable for containers
Miscellaneous: Monoecious
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Image
Common names
  • Pignut Hickory

Photo Gallery
Location: Tyler Arboretum in southeast PA
Date: 2010-10-28
full-grown tree in autumn color
Location: Downingtown Pennsylvania
Date: 2020-12-19
looking up trunk
Location: Daytona Beach, Florida
Date: 2006-11-27
Location: Nichols Arboretum, Ann Arbor
Date: 2012-05-08
Carya glabra - looking up through the limbs and branches of this
Location: Downingtown Pennsylvania
Date: 2020-12-19
trunk bark
Location: Talleyville, Delaware
Date: 2020-11-05
group of trees in golden fall color
Location: Talleyville in far northern Delaware
Date: 2020-11-05
golden fall color of crown

Date: c. 1886
illustration from 'The Gardener's Monthly and Horticulturalist',
Location: Nichols Arboretum, Ann Arbor
Date: 2012-05-08
Showing the rough, corrugated bark of a mature specimen.  The lab
Location: Downingtown Pennsylvania
Date: 2020-12-19
twigs and buds

Date: 1865
illustration by Bessa [as Juglans porcina] from Michaux's 'North
Location: southeast Pennylvania
Date: 2010-06-13
leaves with two nuts

Date: May 2011

Date: September 14, 2011

Date: April 6, 2011
Catkin like blooms of Carya glabra
Location: Talleyville in far northern Delaware
Date: 2020-11-05
trunks
Location: Port Orange, Florida
Date: 2018-07-07
Location: at Winterthur Gardens in northern Delaware
Date: 2010-07-11
upper tree in summer
Location: at Winterthur Gardens in northern Delaware
Date: 2011-08-12
two trunk portions and bark

Date: September 19, 2011

Date: May 2011

Date: September 14, 2011

Date: March 23, 2011

Date: September 14, 2011

Date: 2005-05-24
Location: Hollis, New Hampshire
Date: August 11, 2013
Location: Hollis, New Hampshire
Date: August 11, 2013
Location: Tampa, FL
Date: 2016-01-13
At USF Botanical Gardens
Location: Daytona Beach, Florida
Date: 2017-12-07
 Squirrel food!
Location: Tampa, FL
Date: 2015-05-02
At USF Botanical Gardens
Location: Port Orange, Florida
Date: 2018-05-07
Location: Port Orange, Florida
Date: 2018-05-07
Close up view.
Location: Daytona Beach, Florida
Date: 2017-12-07
Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Nov 25, 2017 12:01 PM concerning plant:
    I occasionally have seen this beautiful species, probably the third most common hickory in the North after the Shagbark and Bitternut Hickories. It is native from southern New England into central Florida to a little in east Texas up to much of Missouri and most all of Illinois to central Michigan. Its compound leaves get 8 to 12 inches long and usually have 5 leaflets, but can have 7 and leaflets are broad. The husk-nut fruit is about 1.3 inches long and is pear-shaped, and seed can be bitter or sweet. The gray bark on mature trees is of scaly ridges that form a rough diamond-shaped pattern. It grows in dry and moist, well-drained soils. It grows slowly as other hickories of about 6 -8 inches /year. It forms a deep taproot, but small trees can be moved B&B in early spring. It lives about 200 to 300 years. Hickories are sort of messy dropping twigs and nuts, but they are so magnificent, and they are host plants for a huge array of beneficial insects, as for caterpillars of many butterfly and moth species.
  • Posted by plantladylin (Sebastian, Florida - Zone 10a) on Sep 19, 2011 4:27 PM concerning plant:
    This is a fairly common Hickory tree here in my area. We don't get to see much autumn color this far south but some years these trees do show some pretty colors.

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