Spotting hackberry trees and their unique fruits can be a fun way to connect with nature, especially during the fall and winter months. While they might not be the most flashy trees, understanding their key features, especially their seed pods, makes identification much simpler. This guide will help you easily identify hackberry tree seeds and the trees that produce them, distinguishing them from look-alikes and even providing insights into their use and propagation.
The hackberry tree, scientifically known as Celtis occidentalis, is a common sight in many North American landscapes. Often found in floodplains and forests alongside cottonwoods and elms, it’s a tree that’s surprisingly easy to overlook until you know what to look for. Its leaves can resemble those of elm trees, which makes sense because they’re in the same family, Ulmaceae. However, unlike elms that produce papery seeds called samaras, hackberries develop small, round fruits. Once you recognize the distinctive bark and fruit, you’ll start spotting these trees everywhere.
Hackberry trees are quite adaptable and can grow in various conditions. They often thrive in floodplain forests but can also be found lining streets, much like elms once were. They are known to grow into large, stately trees.
The hackberry’s resilience and adaptability make it a notable species in its native range. Its ability to thrive in different environments contributes to its widespread presence.
Hackberry trees, scientifically known as Celtis occidentalis, possess several distinct features that make them recognizable, even outside of their fruiting season. These characteristics help distinguish them from other trees, especially those with similar leaf structures.
The bark of a mature hackberry tree is quite distinctive. It’s typically a light gray color and is characterized by its corky, warty texture. These “warts” or ridges can vary in size and prominence, giving a rough, almost bumpy appearance. This unique texture is a reliable indicator, especially when observed closely.
Hackberry trees often exhibit a spreading, somewhat irregular growth pattern. They can develop into large, stately trees with gracefully drooping branches. This open canopy can be a clue to their identity, particularly in urban or park settings where they are sometimes planted as street trees, much like elms once were.
Leaves are arranged alternately along the stem. They are typically oval-shaped, measuring about 2 to 4 inches in length, and are often asymmetrical at the base, giving them a lop-sided appearance. The edges of the leaves are usually serrated, but this serration is often confined to the upper half of the leaf. Three prominent veins are usually visible, running from the base to the tip.
While not as vibrant as some other deciduous trees, hackberry leaves do turn a yellow color in the fall. This color change, combined with the persistent seed pods, can help in identification during the later parts of the year.
The hackberry’s resilience and adaptability are notable; it’s a tree that can thrive in various conditions, often found in floodplains and along riverbanks, but also adaptable to drier sites. Its ability to withstand environmental stresses contributes to its widespread presence.
Perhaps the most defining characteristic, especially when looking for the fruit, is the seed pod. These are small, round fruits, about the size of a cherry pit. They start green and mature to a reddish-purple or dark purple-black color. These drupes are a key characteristic for recognizing the species. They contain a single seed surrounded by a thin layer of sweet, edible flesh.
It’s common to find leaf spots or insect galls on hackberry leaves. These are usually caused by various fungi or insects and often appear as small, dark spots or swollen growths on the leaf surface. While not exclusive to hackberries, their frequent presence can be another helpful identification clue.
The fruits of the hackberry tree, scientifically known as drupes, are often mistaken for berries but are more accurately described as small, hard fruits. Each drupe consists of a thin, sweet outer layer surrounding a hard seed. While they might seem unassuming at first, these drupes offer a unique flavor profile, often compared to dates, and are quite versatile in culinary applications. It’s helpful to think of them less as traditional berries and more as a type of nut or seed. The texture can be a bit surprising, as the seed doesn’t fully break down, providing a noticeable, though not gritty, crunch. Many people find this texture off-putting, but there are ways to prepare them that make them more palatable. For instance, creating hackberry milk is a popular method that extracts the flavor and nutrients without the hard seed.
This rustic nut milk, with its subtle date-like taste, is an excellent starting point for those new to hackberries, especially if the seed’s texture is a concern. The process involves ancient techniques, similar to those used for preparing hickory nuts. By making hackberry milk, you can enjoy the fruity and nutty qualities without the seed’s crunch. It can be served warm with a bit of maple syrup and cinnamon, or used as a base for cooking, such as in custards or puddings. This method allows you to get the full benefit of the fruit while bypassing the textural challenge.
A more straightforward approach involves drying the hackberries and then grinding them into a meal, seeds and all. This ground mixture can be combined with other ground nuts and dried fruits to create energy bars, reminiscent of historical wild food preparations. A spice grinder works well for this purpose, turning the dried drupes into a usable powder. This method is simple and allows for creative combinations with other foraged ingredients.
When you start noticing the distinctive corky, warty bark and brown seeds, you’ll begin to see hackberry trees more frequently. These trees often thrive in floodplains and areas with other species like cottonwoods and elms. Harvesting is typically done from late fall through early spring. If reaching higher branches is difficult, a fruit hook can be helpful. Remember that while birds enjoy these fruits, humans have also utilized them for centuries, finding ways to enjoy their unique taste and nutritional value. Properly identifying the hackberry tree seed pods is the first step to enjoying them yourself.
When you’re trying to figure out if you’ve got a hackberry tree on your hands, the seed pods, also called drupes, are a pretty good clue. They’re not huge, usually about the size of a pea or a small cherry, so don’t expect anything massive.
These little fruits start out green and then change to a purplish-brown or reddish-brown as they ripen. They hang around on the tree for a good while, often into the winter, which is helpful for identification even when the leaves are gone.
Here’s a quick rundown of what to look for:
It’s worth noting that the color can vary a bit depending on the specific hackberry species and how ripe the fruit is. You might see a whole mix of colors on the same tree if they’re ripening at different rates.
The appearance of these drupes is quite consistent across different hackberry varieties, making them a reliable feature for identification. Their small size and characteristic color change are key visual markers.
If you’re trying to identify different types of trees and you see these small, roundish fruits, especially in the fall and winter, it’s a strong indicator that you might be looking at a hackberry.
As summer begins to wane, typically around August or September, hackberry trees start to show off their fruits. These small, round drupes, which start green, gradually ripen to a purplish-brown or dark red color. This is the prime time to spot them in abundance, as they hang in clusters along the branches. The mature fruits are the most distinctive feature of the hackberry during this season. They persist on the tree for a considerable time, often well into winter, providing a food source for various wildlife.
Even after the leaves have fallen, the hackberry’s seed pods, or drupes, can still be observed. Their dark, dried-out appearance makes them less conspicuous against the bare branches, but they often remain attached to the twigs. This persistence is key for wildlife, as these fruits can be a vital food source during the colder months when other food is scarce. You might notice that some fruits from the previous year could still be present, though they are usually less plump and may have lost some of their color.
In early spring, as the tree prepares for new growth, the last of the old fruits may finally drop. You might see a few shriveled drupes still clinging to the branches, but they are generally replaced by the emergence of new buds and the unfurling of fresh leaves. The focus shifts from the fruit to the developing foliage and flowers, making the seed pods less apparent. Observing the transition helps confirm the tree’s identity, especially when comparing it to other species that might have different fruiting or budding cycles. For those interested in native plants for Southern Ontario, understanding these seasonal changes is part of appreciating native plants.
The bark of a hackberry tree is quite distinctive, and once you know what to look for, it can be a reliable way to identify the tree, even when it’s not bearing fruit. The bark is typically a light gray to grayish-brown and has a corky, warty texture. It often develops irregular ridges and furrows as the tree matures, but it’s the presence of these “warts” or corky projections that sets it apart. You might also notice some shallow fissures. It’s not deeply furrowed like an oak, nor is it smooth like a beech. Think of it as having a somewhat bumpy, textured appearance.
When you’re examining the branches and twigs, look for a zigzag pattern in the growth. This is a common characteristic of hackberry branches. The twigs themselves are usually slender and can have a reddish-brown hue. They often have small, raised lenticels, which are tiny pores that allow for gas exchange. These features, combined with the bark, can give you a good indication of the tree’s identity.
It’s important to be able to tell if a tree is alive or not, especially if you’re looking for specific features like seed pods. If you’re unsure about the health of a tree, there are a few things you can check. Look for a lack of leaves during the growing season, branches that snap easily and feel dry, or bark that is peeling away in large sections. A simple test is to scratch a small section of a twig with your fingernail; if you see green underneath, the branch is likely alive. If it’s brown and dry, it might be dead. For more complex situations, it’s always best to consult a professional arborist to determine if a tree is dead to determine if a tree is dead.

When you’re trying to figure out if a tree is a hackberry, take a good look at its leaves. They’re not always perfectly symmetrical, which is a bit of a giveaway. One side of the leaf might be a little different from the other, especially near the base where it attaches to the stem. This asymmetry is a common trait. Also, pay attention to the edges of the leaves. While some hackberry leaves have smooth edges, many will have small teeth, or serrations, but usually only on the upper half of the leaf. The lower half, closer to the stem, tends to be smoother.
Hackberry leaves are generally oval or egg-shaped, tapering to a point at the tip. They’re typically not huge, usually measuring between 2 to 4 inches in length. The texture can feel a bit rough, almost like sandpaper, due to tiny hairs on the surface.
It’s important to note how the leaves grow on the branches. Hackberry leaves are arranged alternately, meaning they don’t grow directly across from each other on the stem. Instead, each leaf emerges from a different point along the twig, creating a staggered pattern as you look up the branch. This is different from trees, where leaves grow in pairs directly opposite each other.
The combination of asymmetrical bases, serrated upper edges, and alternate arrangement on the twig helps distinguish hackberry leaves from those of other trees. These subtle features, when observed together, provide strong clues to the tree’s identity.
In terms of color, hackberry leaves are usually a medium to dark green during the growing season. They don’t typically have vibrant fall colors; instead, they often turn a dull yellow or yellowish-brown before dropping. This lack of showy autumn foliage is another characteristic that can help in identification, especially when you’re trying to spot sugarberries in the fall.
While hackberry trees are fairly distinctive, especially when you know what to look for, it’s easy to get them mixed up with other trees, particularly during seasons when the seed pods aren’t as obvious. Let’s clear up some of the common confusion.
This is probably the most common tree people confuse with hackberry, mainly because both produce seed pods. However, honey locust pods are quite different. They are much larger, often 8-12 inches long, flat, and leathery. They tend to hang around in the tree well into winter. Also, honey locusts are famous for their thorns, which can be quite formidable, though some varieties are thornless. Hackberries, on the other hand, have small, round, berry-like fruits that mature to a dark purple or reddish-brown.
Another tree with large seed pods, the Kentucky coffee tree’s pods are shorter and fatter than the honey locust’s, usually 4-6 inches long and football-shaped. They are also woody. The bark on older Kentucky coffee trees is scaly, and their branches are often stout and crooked, giving them a distinct silhouette. Hackberry bark is typically smoother with corky, warty ridges, and the branches are more slender.
Sycamores are giants, and their seed balls are also quite different. They produce fuzzy, ball-like clusters that are about an inch in diameter and hang on long stalks. These balls eventually break apart into fluffy seeds. While they might look a bit like a seed pod from a distance, they don’t have the hard, single-seeded drupe structure of a hackberry. Sycamore bark is also very distinctive, peeling in large patches to reveal white, green, and brown inner bark, unlike the ridged bark of a hackberry.
Some elm species can be mistaken for hackberries, especially when looking at the leaves, as both can have asymmetrical bases and serrated edges. However, elms produce small, papery samaras (winged seeds) in the spring, not the berry-like drupes of hackberries. Elm bark is also typically more furrowed and less warty than hackberry bark. Young elm seedlings often exhibit a zigzag growth pattern that naturally straightens as the trees mature [2bff].
It’s helpful to remember that hackberry seed pods are small, round, and berry-like, turning purplish when ripe. They are not flat, leathery, or spiky in the way some other trees’ fruits are. Paying attention to the bark, leaf shape, and the actual structure of the fruit will help you tell these trees apart.
Hackberry trees are like a natural buffet for a lot of different critters. Those little berries, or drupes, that hang around on the branches, especially into the colder months, are a really important food source. Think of them as little energy boosters for wildlife when other food might be scarce. Birds are big fans, and you’ll often see species like cedar waxwings, American robins, and even downy woodpeckers pecking away at them. It’s not just birds, though. Mammals like squirrels, chipmunks, and deer will also munch on the berries when they can get them. This makes the hackberry a pretty key player in the local food web.
One of the most impressive things about hackberry berries is how long they stick around. They often stay on the tree well into winter, sometimes even through the whole season. This persistence is a lifesaver for many animals. When snow covers the ground and makes foraging tough, these berries provide a reliable meal. It’s a good reminder of how trees contribute to the ecosystem even when they look bare.
Because hackberries offer food for so many different kinds of animals, they really help support the overall health of an area’s wildlife. Having these trees around means more food options, which can lead to healthier populations of birds and mammals. It’s a simple but effective way that one type of tree can have a big impact on local biodiversity.
Squirrels, in particular, have a special relationship with hackberry seeds. They’ll often gather the berries and bury them, either to eat later or just because that’s what squirrels do. While they might forget where they put some of them, this behavior helps the hackberry trees spread. It’s a win-win situation: the squirrel gets a meal, and the tree gets a new home.
While the berries are the main attraction, other parts of the hackberry tree can also be useful to wildlife. The twigs and bark might be browsed by deer, especially in the winter when other vegetation is scarce. Even the structure of the tree itself provides shelter and nesting sites for birds and insects.
The small fruits of the hackberry tree, often called drupes, are more like nuts than berries. They consist of a thin, sweet outer layer surrounding a hard seed. While they might not look like much at first glance, these fruits have been a food source for humans and wildlife for a very long time. The key to enjoying them is to think of them as a seed or nut, rather than a typical fruit.
Making hackberry milk is a straightforward process. It results in a rustic drink with a subtle date-like flavor. This is a good option if you’re not keen on the texture of the whole fruit.
There are many ways to prepare hackberries. Some people grind them with dried berries and toasted nuts, binding the mixture with a bit of maple syrup to create a sustaining bar. The ratio of hackberry to other ingredients can be adjusted to personal taste. The flavor is often described as unique and quite satisfying.
When harvesting, a fruit hook can help reach lower-hanging branches. Keep in mind that picking hackberries can be a slow process, with yields of about a quart per hour. However, some find the meditative nature of the task enjoyable, especially during winter.
It’s important to remember that hackberries are primarily seed. The seed itself is hard and won’t break down completely, so it will always be noticeable in the texture. If you don’t like this crunchiness, you can try sifting or straining the processed fruit. People have found ways to enjoy them for centuries, so don’t dismiss them if your first try wasn’t ideal. The fruit is rich in carbohydrates, protein, and fat, offering significant caloric value, which is why some consider it unsurpassed in survival situations. You can find these trees in floodplain forests, often alongside cottonwoods and elms. Foraging for wild greens like sochan and wood nettle in similar areas during spring can be a bonus.
Many wild food guides overlook the fact that the hackberry seed is edible. Some suggest a laborious process of simmering the berries, straining, and discarding the solids to make a sugar syrup, which is quite inefficient. It’s better to consume the entire fruit, including the thin, sugary skin and the seed, to get the full nutritional benefit. The seed’s texture is something to consider; it’s not gritty like dirt from a mushroom, but it is present. If you’ve tried hackberries before and weren’t impressed, there are methods to improve the experience.

Collecting hackberry seed pods, or drupes, is a rewarding activity, but it requires a bit of patience and the right approach. These small fruits offer a unique flavor and nutritional profile, making them a worthwhile harvest for those interested in wild edibles. Remember, the goal is to gather the pods efficiently and safely, respecting the tree and the environment.
Hackberry fruits typically ripen in the fall, usually around September, and can persist through much of the winter, sometimes even into spring. The best time to collect them is after the leaves have fallen. This makes the dark maroon to orange or brown drupes much easier to spot against the bare branches. While you can pick them with leaves still on, it’s significantly less efficient.
Reaching the drupes can be the trickiest part. For lower branches, a fruit hook or even a modified coat hanger can be quite helpful. Many find it useful to have a collection bag or bucket attached to their waist, freeing up both hands for picking. This makes the process go a bit faster.
Be prepared for a slow process; gathering a significant amount can take time. Some estimate a yield of about one quart per hour. It’s a good idea to approach this as a meditative activity rather than a race. The drupes themselves are quite durable, giving you a decent window for collection.
Look for hackberry trees in floodplains and forests, often alongside cottonwoods and elms. These areas tend to have a good concentration of hackberry trees. It’s often easier to find them in less populated areas, like parks or natural reserves, away from busy streets.
Always be mindful of your surroundings and avoid harvesting from trees near busy roads or areas that might be contaminated. When collecting, take only what you need, leaving plenty for wildlife that also relies on these fruits as a food source. Ensure you are harvesting from a tree you have positively identified as a hackberry to avoid confusion with other species. For general tree maintenance, understanding when to trim maple trees is also important for tree health.
Starting hackberry trees from seed is a rewarding process, though it requires a bit of patience. The first step involves collecting the ripe seed pods, which are typically small, berry-like drupes that turn from green to a purplish-brown or dark orange as they mature, usually from fall through winter. Once collected, the seeds need a period of stratification to break dormancy. This mimics the natural process of overwintering. You can achieve this by mixing the seeds with a moist medium, like sand or peat moss, and storing them in the refrigerator for a few months.
After stratification, the seeds can be planted. It’s best to sow them in a well-draining potting mix, either in pots or directly into a prepared garden bed. Keep the soil consistently moist but not waterlogged. Germination can be slow and unpredictable, sometimes taking several months or even a year. Success often depends on providing the right conditions for stratification and planting.
Here’s a general guideline for stratification:
Once seedlings emerge, they will need adequate sunlight and consistent watering. Transplanting young trees is best done during their dormant season, either in late fall after leaf drop or early spring before new growth begins. Proper preparation of the new location is key to successful transplanting a tree.
Growing hackberries from seed is a journey that connects you with the natural cycle of the tree. While direct sowing in the fall is an option, allowing nature to stratify the seeds, artificial stratification offers more control over the process and can improve germination rates.
Even though hackberry trees are generally hardy, their seed pods can sometimes be affected by pests and diseases. It’s good to know what to look out for so you can help keep your hackberry healthy.
Several types of insects can target hackberry seed pods. One common issue is the hackberry bud gall midge. These tiny flies lay their eggs in the developing buds, and the larvae cause galls to form, which can sometimes affect the seed development. Another pest to watch for is the hackberry nipple gall, caused by a tiny wasp. These appear as small, nipple-like growths on the leaves and sometimes on the twigs, but they don’t typically harm the seed pods directly. Scale insects can also sometimes be found on the twigs and branches, potentially weakening the tree and indirectly impacting fruit production.
While less common for the seed pods themselves, hackberry trees can be susceptible to certain fungal diseases that might weaken the tree overall. For instance, powdery mildew can appear on the leaves, especially in humid conditions. Severe infestations of any disease can stress the tree, potentially leading to reduced seed production or smaller, less viable fruits. It’s always a good idea to keep an eye on the overall health of the tree, as a healthy tree is better equipped to produce good seed pods.
Sometimes, what looks like a disease or pest problem is a sign of environmental stress. Extreme weather conditions, like prolonged drought or unusually wet periods, can affect the tree’s ability to produce healthy seed pods. Poor soil conditions or damage to the bark can also contribute to a tree’s overall stress, which might manifest as issues with its fruit. If you notice problems with the seed pods and can’t identify a specific pest or disease, consider the tree’s growing conditions. Sometimes, simple adjustments like proper watering or improving soil drainage can make a big difference in tree health.
Your plants’ seed pods might face trouble from common pests and sicknesses. These issues can harm your harvest. Want to learn how to keep your seed pods healthy and strong? Visit our website for tips and solutions.
Hackberry trees, scientifically known as *Celtis occidentalis*, are common in North America. They are recognized for their distinctive bark, which often has a bumpy, cork-like texture. These trees produce small, round fruits that start green and turn reddish-purple or dark brown as they ripen.
Hackberry seed pods are technically called drupes. They are small, typically about the size of a pea, and can range in color from orange or red to dark purple or brown. They have a thin, sweet outer layer surrounding a hard seed.
You can usually find hackberry seed pods from late summer through winter. They often remain on the tree even after the leaves have fallen, making them easier to spot during the colder months.
Hackberry leaves are often described as being similar to elm leaves. A key difference is that hackberry leaves are usually lopsided or asymmetrical at the base. They also tend to be toothed, or serrated, mostly on the upper half of the leaf.
The bark of a hackberry tree is a good clue. It’s often gray and can have a rough, corky texture with warty projections. This unique bark pattern is a helpful way to identify the tree, especially when the leaves are gone.
While hackberry fruits are edible and have been used by people, it’s important to be sure you have correctly identified the tree. Think of them more like a small nut than a typical berry. They have a sweetish taste and can be used in various recipes.
Hackberry trees are important food sources for many types of wildlife, especially birds. The fruits provide nourishment during the fall and winter when other food sources might be scarce.
When trying to identify hackberry trees, look for the characteristic lopsided leaves, the warty or corky bark, and the small, round fruits that persist into winter. These features, when seen together, are strong indicators of a hackberry tree.