Q&A for How to Identify Hickory Trees

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  • Question
    What is a hickory leaf look like?
    Michael Simpson, PhD
    Registered Professional Biologist
    Dr. Michael Simpson (Mike) is a Registered Professional Biologist in British Columbia, Canada. He has over 20 years of experience in ecology research and professional practice in Britain and North America, with an emphasis on plants and biological diversity. Mike also specializes in science communication and providing education and technical support for ecology projects. Mike received a BSc with honors in Ecology and an MA in Society, Science, and Nature from The University of Lancaster in England as well as a Ph.D. from the University of Alberta. He has worked in British, North American, and South American ecosystems, and with First Nations communities, non-profits, government, academia, and industry.
    Registered Professional Biologist
    Expert Answer
    Hickory leaves are compounded, which means they are comprised of several leaflets paired on opposite sides of what looks like a stem but is actually a leaf’s midrib (central vein).
  • Question
    How do you identify hickory nuts?
    Michael Simpson, PhD
    Registered Professional Biologist
    Dr. Michael Simpson (Mike) is a Registered Professional Biologist in British Columbia, Canada. He has over 20 years of experience in ecology research and professional practice in Britain and North America, with an emphasis on plants and biological diversity. Mike also specializes in science communication and providing education and technical support for ecology projects. Mike received a BSc with honors in Ecology and an MA in Society, Science, and Nature from The University of Lancaster in England as well as a Ph.D. from the University of Alberta. He has worked in British, North American, and South American ecosystems, and with First Nations communities, non-profits, government, academia, and industry.
    Registered Professional Biologist
    Expert Answer
    Hickory trees are renowned for their nuts, which are enclosed in round or oval green husks while they ripen.
  • Question
    How similar to black walnut are hickory trees, and how do I tell them apart?
    Community Answer
    Black walnuts are quite large in comparison to hickory nuts. When looking at a black walnut, it will most likely be coated in a green, powdery looking substance. Hickory nuts do not have this outer coating. Black walnuts also have a distinctly chambered pith.
  • Question
    At what point can I top my hickory tree?
    Community Answer
    A hickory tree should never be topped. Doing so will ruin its form. Hickories should only grow where a big tree is desired.
  • Question
    Is it unusual for a mature hickory tree to fail to produce nuts for one season?
    Community Answer
    No., Hickory trees, like a lot of trees, do not reliably produce abundant crops of seeds every year. This is most likely a result of environmental factors like late frosts.
  • Question
    Is hickory toxic to horses?
    Community Answer
    Yes, if it's ingested. Check for signs of sickness. Discuss with a vet if you see any problems.
  • Question
    My tree has beech-shaped leaves finely and sharply serrated. They're not opposite, but alternate along the stem and terminate in a cluster of pale green soft, flat pods. I live in New Hampshire. Is this a hickory tree?
    Brandon Conrad
    Community Answer
    No. A hickory tree's leaves are always directly opposite one another and with one on the end making groups of odd numbers with the largest of the leaves at the very tip of the branch.
  • Question
    Do hickory trees drop sap?
    Community Answer
    Yes, hickory trees produce sap.
  • Question
    Is hickory poisonous when cooking pork shoulder?
    Community Answer
    Absolutely not. Hickory is commonly used to smoke bacon and other pork products.
  • Question
    Do hickory trees grow in cold northern climates?
    Community Answer
    Yes. I live in New Hampshire where the temperatures are below freezing almost all winter long. The species that I have living on my property is the Shagbark Hickory.
  • Question
    What is the main difference between tung oil tree fruit and hickory?
    Community Answer
    If you eat a tung oil nut, you will most likely die. Tung oil nuts are highly toxic.
  • Question
    How long does it take to season hickory wood to use for firewood?
    Community Answer
    Like most wood, what you cut this year, you burn next year. So 1 year, or at least 6 months if the wood has been split so as to open the grain for drying.
  • Question
    How do I tell if my tree is a hickory tree?
    Community Answer
    Read the above story on how to identify your hickory tree. It is sure to tell you what you have.
  • Question
    Where do hickory trees grow?
    Community Answer
    Hickory trees grow east of the Mississippi River. A type of hickory, the pecan, is native to southern states, and grows west of the Mississippi and as far south as Texas.
  • Question
    Why would my leaves be dropping in July?
    Community Answer
    Perhaps your tree is sick or malnourished. Take care to fertilize and water it for the next few weeks and see what happens.
  • Question
    How can I identify a hickory tree stump?
    Community Answer
    You should see a five-sided or star-shaped figure in the center of the stump that is tan colored.
  • Question
    I have a hickory tree on my land, it has leaves with pointed, serrated edges and bark that is not shaggy. The leaves are not waxy or tinted red. Any ideas what kind of hickory it is?
    Community Answer
    Possibly a kingnut? I live in Ontario, Canada and it sure sounds like mine; it has green nuts in clumps and the tree grew very fast and big.
  • Question
    How long can a hickory tree live for?
    Community Answer
    There are various types of Hickory, but most can live many, many years (over 350).
  • Question
    When are hickory nuts harvested?
    Community Answer
    In the fall, usually October-November as the leaves are dying off and falling and the tree prepares for the winter months ahead. The nuts will begin falling off the trees as they dry, and sometimes they will be dry enough that the outer shell will fall off of the nut as it hits the ground and the bare nut will be laying on the ground ready to be cracked.
  • Question
    Is hickory wood worth milling and selling for furniture?
    Community Answer
    Yes, but it depends on if the tree was in a grove of trees or standing by itself and exposed to a lot of wind. If the exposed tree is cut, it may have what is called ''wind shake'' and warpage in the wood, making it less desirable to mill or use. If you like to make bows or hunting weapons, almost all mature hickory will do very well.
  • Question
    What do I avoid if I'm allergic to hickory?
    Community Answer
    Obviously, you don't ingest Hickory nuts, and I would avoid meats that had been smoked with hickory.
  • Question
    A tree came down in a storm and I'm wondering if it's hickory or butternut. The nut is oblong and has a point on one end, the outer husk is smooth and the tree base actually splintered.
    Community Answer
    That sounds very much like a pecan tree. Hickory nuts are round with a very hard shell, where are pecans are oblong with a point on the end and are no more than 1/8 inch shell thickness.
  • Question
    Is there any way of controlling the quantity of nuts that a hickory tree drops?
    Community Answer
    You can. All you have to do is pick off the early setting nuts, to as few as you like. Although, it’s likely the squirrels will eat a bunch, it may be best to leave extra nuts on the tree.
  • Question
    Are hickory trees hardwood?
    Community Answer
    Yes. Hickory is considered a hardwood and is excellent for burning in a fireplace or wood-stove. It is a popular choice for smoking food.
  • Question
    Can I smoke meat with hickory nuts?
    Community Answer
    Yes; it makes the meat sweeter than smoking with hickory wood chips.
  • Question
    Do the hickory nuts that drop smell lemony?
    Community Answer
    All parts of the hickory tree have almost a soapy/lemony smell. Crush a leaf or split a nut and the aroma will be very apparent.
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