The Tree Everyone Curses, and Almost Nobody Understands
If you grew up in the South, you know the sweet gum tree. You probably know it best as the source of those spiky brown balls that litter your yard every fall, the ones that twist your ankles, clog your gutters, and make you wish the tree had never been planted. What most Southerners don't know is that the same tree they've been cursing for years is one of the most chemically rich medicinal hardwoods in North America, with documented human use going back thousands of years.
A Tree With Deep Roots in Southern Medicine
The sweet gum tree (Liquidambar styraciflua) is a native North American hardwood that grows abundantly across the Southeast, including right here in Alabama. The Latin name tells the story: Liquidambar comes from the Latin liquidus and the Arabic ambar, referring to the amber resin that seeps from wounded bark. Styraciflua means "flowing with storax" — the resin the tree has been known for since antiquity.
Native American tribes including the Cherokee, Choctaw, and Koasati used the resin, bark, and seed pods to treat wounds, coughs, and stomach problems. Storax, the resin that collects when the outer bark is damaged, has documented medicinal use dating back to the Aztec period in Mesoamerica. Confederate Army Surgeon Francis Peyre Porcher catalogued sweet gum among the medicinal plants available to Southern physicians in his 1863 field guide, prepared by order of the Surgeon General, one of the most detailed records of Southern medicinal plant use ever compiled. Southern folk herbalists carried that knowledge forward for generations. Sweet gum ball and bark preparations were a standard part of the home medicine cabinet across the Deep South long before anyone understood the chemistry behind why they worked.
What Modern Science Found Inside
When researchers began studying sweet gum more closely, they found something notable. The seed pods, particularly the infertile seeds inside the green balls, are a natural source of shikimic acid, the same compound that pharmaceutical companies extract from star anise to manufacture widely used antiviral medications. Research has confirmed that the infertile seeds of Liquidambar styraciflua yield shikimic acid at concentrations of up to 6.5% by dry weight — compared to just 0.14% in the fertile seeds of the same pod. That gap is why harvest timing and pod selection matter so much in the field.
A 2015 review published in Pharmacognosy Reviews by researchers at the University of Arkansas examined the full documented range of sweet gum's properties. The review confirmed that storax shows strong antimicrobial activity in laboratory studies, including against methicillin-resistant Staphylococcus aureus (MRSA). Leaf extracts have shown antioxidant activity that outperformed the synthetic antioxidant BHT in laboratory models. Storax has shown anticonvulsant effects in laboratory studies and accelerated wound healing in animal models. Anti-inflammatory activity has been documented in multiple fractions of the tree. Research into this tree is ongoing. For a deeper look at the compound itself and other plants that contain it, see our full shikimic acid overview.
Important note: Shikimic acid is a plant compound used in pharmaceutical manufacturing, not a finished drug itself. We make no claims that sweet gum extract treats, cures, or prevents any disease. Always consult a qualified healthcare provider before using any herbal preparation.
Why the Green Balls Matter
Timing of harvest makes a significant difference in the potency of sweet gum preparations. The green, immature seed pods, collected before they dry, brown, and fall, contain the highest concentration of shikimic acid and active compounds. Research confirms that young seeds have a dramatically higher concentration of shikimic acid than older seeds, seed hulls, stems, or bark. The 6.5% yield from infertile green seeds drops to near nothing once the pod dries out and hits the ground. This is why we harvest in season, by hand, while the balls are still green.
How We Harvest at Mayim Farm
We've farmed this land in Alabama since 2011. Sweet gum trees grow wild across our property and our neighbors' land throughout the area, trees that have never been sprayed, fertilized, or chemically treated in any way. We wild harvest the green seed pods by hand each season, then tincture them slowly in alcohol to extract the full spectrum of beneficial compounds the tree has to offer.
What starts as the most despised tree in the Southern yard becomes, in our hands, one of the most interesting plants we work with. A nuisance turned to medicine, from the same land we've been farming for over a decade.
Frequently Asked Questions
What are sweet gum balls good for?
Sweet gum balls, specifically the green, immature seed pods harvested before they fall, are a natural source of shikimic acid and a range of antiviral, anti-inflammatory, and antimicrobial compounds. They've been used in Southern and Native American folk medicine for centuries. A 2015 review in Pharmacognosy Reviews (University of Arkansas) confirmed the presence of bioactive compounds including antimicrobial, antioxidant, and anticonvulsant activity across multiple fractions of the tree.
What is shikimic acid and why does it matter?
Shikimic acid is a plant compound that pharmaceutical manufacturers use as a starting material to produce widely used antiviral medications. It's found in star anise, sweet gum seed pods, and a handful of other plants. Sweet gum is one of the few renewable domestic sources available in the United States. Research has confirmed that the infertile seeds inside green sweet gum pods yield shikimic acid at concentrations up to 6.5% by dry weight. For a full explanation, see our shikimic acid overview.
Can you make medicine from sweet gum balls?
Sweet gum ball extracts have a long history in traditional medicine across Native American tribes including the Cherokee, Choctaw, and Koasati, and in Southern folk practice. Modern research has confirmed that the seed pods contain active compounds with antimicrobial, antioxidant, and anti-inflammatory properties in laboratory studies. We produce a small-batch tincture from wild-harvested green sweet gum balls here in Alabama. We make no claims that it treats or prevents any disease.
When should you harvest sweet gum balls?
Green, immature seed pods, collected before they brown and fall, have the highest concentration of shikimic acid and active compounds. Research shows infertile green seeds yield up to 6.5% shikimic acid by dry weight, while older dried seeds and hulls contain a fraction of that. Once the balls hit the ground, much of that potency is gone. We harvest by hand during the green season each year.
Is sweet gum the same as star anise for shikimic acid?
Both are natural sources of shikimic acid. Star anise has historically been the primary commercial source used in pharmaceutical manufacturing. Sweet gum is a North American alternative that research has confirmed contains comparable concentrations of shikimic acid in its immature infertile seeds, up to 6.5% by dry weight. We make extracts from both: our Sweet Gum Ball Extract from wild-harvested Alabama sweet gum, and our Star Anise Extract from whole star anise pods.
Has sweet gum been studied beyond shikimic acid?
Yes. A 2015 review in Pharmacognosy Reviews documented a wide range of laboratory findings across the tree. Storax showed antimicrobial activity including against MRSA, anticonvulsant effects, accelerated wound healing in animal models, and anti-ulcer activity in rat models. Leaf extracts demonstrated antioxidant activity. Compounds from the seed pods have shown chemopreventive activity in laboratory studies. Research into this tree continues to grow.
Our Sweet Gum Products
Our wild-harvested Sweet Gum Ball Extract is made from green sweet gum balls collected right here in Alabama, slow-extracted in small batches with no additives or fillers. It's one of our most unusual products — a wild-crafted American herbal extract that you won't find at any chain supplement store.
We also make a Star Anise Extract, slow-extracted here on the farm from whole star anise pods. Star anise is the plant the pharmaceutical industry relied on before supply chains buckled in 2005. Both extracts are small-batch tinctures packaged here at the farm.
Browse all shikimic acid products or shop our full immune and antiviral support collection.
Read more about shikimic acid, what it is, and why it matters