General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Partial or Dappled Shade
Partial Shade to Full Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 15 to 18 feet
Plant Spread: 10 to 12 feet
Leaves: Good fall color
Deciduous
Fruit: Edible to birds
Fruiting Time: Late summer or early fall
Fall
Flowers: Showy
Inconspicuous
Other: The male flowers are quite noticeable, the female flowers are very tiny and hard to see.
Flower Color: Brown
Other: Very tiny red female flower. Brown catkins (male flower) in winter, turning cream colored when they open up in the spring.
Flower Time: Late winter or early spring
Uses: Windbreak or Hedge
Edible Parts: Fruit
Wildlife Attractant: Birds
Propagation: Seeds: Self fertile
Other info: Easily started from the unshelled nut.
Propagation: Other methods: Offsets
Pollinators: Wind
Containers: Not suitable for containers
Miscellaneous: Monoecious

Image
Common names
  • American Hazelnut
  • American Hazel
  • American filbert
  • Hazelnut

Photo Gallery
Location: Morton Arboretum in Lisle, Illinois
Date: 2023-10-24
shrub in fall color
Location: my garden zone 5 Indiana
Date: 2021-03-12
Location: Missouri Botanical Garden in St Louis
Date: 2024-02-14
Location: Jenkins Arboretum in Berwyn, Pennsylvania
Date: 2018-11-04
good fall color this year despite so much wetness
Location: Miami County, Indiana
Date: October 12, 2014
Close Up View
Location: Miami County, Indiana
Date: October 12, 2014
Close Up View Showing Catkins
Location: Miami County, Indiana
Date: October 12, 2014
In Natural Setting
Location: Illinois, USA
Date: 2020-03-21
Location: Downingtown, Pennsylvania
Date: 2009-10-25
full-grown shrub at fence in fall color
Location: Tennessee
Date: 2002-06-08
Steven J. Baskauf http://bioimages.vanderbilt.edu/
Location: Pacific Northwest, zone 8
Date: Feb 6, 2012
Red female flower with male flowers (catkins)
Location: My garden
Location: My garden
Date: 8/30/18
2nd harvest on our young shrub
Location: Vienna, VA
Date: 2017-08-08
catkins on young shrub in early August in Zone 7a
Location: Vienna, VA
Date: 2017-08-08
immature fruit in early August in Zone 7a
Location: Downingtown, Pennsylvania
Date: 2010-10-27
shrub in fall color
Location: Downingtown, Pennsylvania
Date: 2008-10-15
autumn leaves
Location: Downingtown, Pennsylvania
Date: 2011-02-03
base of stems and bark
Location: Downingtown, Pennsylvania
Date: 2010-02-19
two hazelnuts to right; two spicebush to left

photo credit: Albert Herring
Location: Chicago Botanical Gardens
Date: 2013-05-06
Location: National Botanical Garden (DC) | November 2022
Date: 2022-11-26
Location: My garden
Date: 4/7/18
Male catkins opening in spring
Location: Vienna, VA
Date: 2017-08-08
This young shrub is only several feet high, but it has already pr
Location: Vienna, VA
Date: 2017-08-08
Location: Glen Ellyn, Illinois
Date: summer in 1980's
maturing planted shrub in park
Location: Downingtown, Pennsylvania
Date: 2014-07-24
cluster of husks with nuts inside
Location: Downingtown, Pennsylvania
Date: 2014-07-24
foliage and fruit
Location: Downingtown, Pennsylvania
Date: 2014-03-31
catkin flowers
Location: Batavia, Illinois
Date: October in 1980's
screen of hazelnut shrubs in fall
Location: Jenkins Arboretum in Berwyn, PA
Date: 2012-10-21
full-grown shrub mostly in fall color in part shade
Location: Morton Arboretum in Lisle, Illinois
Date: winter in 1980's
full-grown shrub in winter
Location: Downingtown, Pennsylvania
Date: 2010-02-19
closed catkins in February
Location: Tennessee
Date: 2004-11-09
Steven J. Baskauf http://bioimages.vanderbilt.edu/

photo credit: Melissa McMasters
Uploaded by robertduval14
Location: Sherwood, Oregon
Date: 2017-05-27
Location: Pacific Northwest, zone 8
Date: Jun 2, 2012
Immature fruit
Location: Pacific Northwest, zone 8
Date: Feb 6, 2012
Male blooms (catkins) hanging from branches.
Location: Pacific Northwest, zone 8
Date: Feb 6, 2012
Male flowers
Location: Pacific Northwest, zone 8
Date: Feb 6, 2012
Location: Brownstown Pennsylvania
Date: 2016-06-30
Location: My garden
Date: 2017-06-26
Location: Downingtown Pennsylvania
Date: 2021-03-26
tiny red female flower in bloom
Location: Downingtown Pennsylvania
Date: 2021-03-26
two tiny red female (pistillate) flowers in bloom
Location: Downingtown Pennsylvania
Date: 2021-03-26
tiny red female flower & big, long, yellow male catkin
Location: Downingtown Pennsylvania
Date: 2021-03-26
male catkin flowers swaying in wind
Location: Downingtown, Pennsylvania
Date: 2014-07-24
two full-grown shrubs together at fence
Location: Downingtown, Pennsylvania
Date: 2008-09-02
another shot of two shrubs together
This plant is tagged in:
Image Image

Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 29, 2017 1:02 PM concerning plant:
    The American Hazelnut or Filbert is native from southern Maine down to northern Georgia-Alabama-Mississippi-Louisiana up through eastern Kansas & Nebraska to areas of North Dakota, southern Manitoba through most of Minnesota & Wisconsin, through southern Michigan and southeast Ontario, growing in upland woods and woodland edges. I saw a number of wild ones in central Wisconsin back in the 1980's, but otherwise I have not seen wild ones. I think the over-population of deer, the lack of natural burns, and the invasive Eurasian shrubs have lessened their once more common appearance in many locations. I planted two specimens that I bought at a native plant nursery here in southeast Pennsylvania in 2003, and they have been doing well since then. It grows in moist to dry sandy to heavy clay soils and can grow in deep shade or full sun. The American species differs from the very similar European Hazelnut by having slightly larger leaves to 6 inches long verses 4 inches; the American nuts are a little smaller of about 1/2 inch long verses 3/4 inch for the European; the American species has its husk bracts somewhat longer to twice as ling as the nut while the European has the bracts shorter to only slightly longer; and the American species gets a better autumn color more towards bright yellow to orange to red. The nuts are edible for people, but the squirrels beat me to the harvest. I have had some saplings come up in the yard from the squirrels planting them. Hazelnuts bear two kinds of flowers: the large, long, yellow catkins and the tiny red female flowers that are separate, but both on the same plant; still making the plant monoecious. Hazelnuts grow about 1.5 to 2 feet/year when young. The bark is smooth and gray. Over time, the stems become very thick together and one may have to selectively prune some out at ground level. It is easy to transplant with its shallow, fibrous root system, but it does send up a lot of ground suckers, which can be used for propagation. Many native nurseries sell some for naturalistic landscapes, but I have not seen them sold by most conventional nurseries, even big ones.
  • Posted by TBGDN (Indiana - Zone 5a) on Oct 14, 2014 11:27 AM concerning plant:
    The American Hazelnut is a North American deciduous shrub that produces edible nuts. It is classified as Corylus americana and is part of the Betulaceae (birch) family. In addition to the hazelnuts, this family includes birch and alder trees. There are other trees and shrubs in this family too. Common names may include American hazelnut, bush hazelnut, American filbert or American hazel. It can be found in USDA zones 4 through 9 ranging roughly from eastern Canada and the United States southward to Florida; then westward toward Louisiana then northward to Minnesota. These plants when mature can vary from three 3 to 18 feet in height, and as much as 8 to12 feet across.

    The leaves can range from two to eight inches in length. They are like elongated ovals in shape, with serrated edges. As I research this plant, it is autumn (October 14, 2014) and the leaves are in various evolving color shades and hues. Locally the colors are found in shades of green, yellow, purple and orange, but the most prevalent shade to date is a very attractive red! They are even more attractive in bright sunlight.

    This is a monoecious species. Its reproductive parts are on separate flowers on the same shrub. The male flowers are brown catkins and the female catkins are red. The males are also longer than the females, which are about a half-inch long. American hazelnuts are edible. They are much smaller than other hazelnuts, but just as tasty.

    When I searched the internet for “American Hazelnut (Corylus americana),” it came back with 40,800 entries. This is a tremendous amount of information, and I cannot help but wonder about the accuracy of some of these entries! There are articles relating to many hybrid varieties, USDA developed hybrids, named cultivars, and of course the genus Corylus L. – hazelnut which contains 7 species and 13 accepted taxa according to the USDA. These can be found from Turkey to Tibet, and China to California; as well as Siberia and the Himalayan Mountains.

    In summary my comments refer only the American Hazelnut (Corylus americana). I cannot comment accurately on other than what I see and find locally and reputable websites. The best external site for research information (with a high degree of accuracy) is the USDA Website at this link: USDA HAZELNUT DATA You must enter 'American Hazelnut' in the search box.
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Discussion Threads about this plant
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Tree? by Cyclaminist Apr 30, 2016 11:03 AM 3

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