- Jie Geng, also known as Balloonflower Root, has been used in traditional Chinese medicine for a variety of purposes. Research suggests it might be helpful for the respiratory system and have anti-inflammatory effects.
- However, modern medicine hasn’t studied its effectiveness all that much. It’s mostly used as a dietary supplement and isn’t widely accepted as a standard treatment.
- From what we know, side effects seem to be rare. Animal studies show it’s safe even at high doses, but there’s not much data from human studies yet.

Balloonflower root, known as Jie Geng (桔梗) in Traditional Chinese Medicine (TCM) and scientifically as Platycodon grandiflorum, is a versatile herb cherished for centuries in East Asia. Often referred to as Platycodonis Radix, this humble root has earned a reputation for supporting respiratory health, soothing sore throats, and even aiding digestion.
Whether you’re curious about natural remedies or exploring TCM, this article dives into what makes balloonflower root special—its benefits, uses, and what science has to say about it. Think of it as your friendly guide to understanding this herb, grounded in tradition and backed by credible research.
What Is Balloonflower Root?
Balloonflower root comes from the balloonflower plant, a perennial native to regions like China, Korea, and Japan. In TCM, it’s called Jie Geng and is prized for its ability to support the lungs. The dried root—typically harvested in spring or autumn—is the part used medicinally. You might find it in herbal shops as pale, cylindrical pieces, sometimes with a brownish outer layer if the skin hasn’t been peeled away1.
A Quick Look at Its Features
- Appearance: Long and slightly spindle-shaped, 7–20 cm in length, with a yellow-white interior and a brittle texture.
- Taste: Slightly bitter and pungent, with a neutral nature in TCM (not too heating or cooling).
- Key Role: Targets the lung meridian, making it a go-to for respiratory issues.
Historically, texts like the Shennong Ben Cao Jing (The Divine Farmer’s Materia Medica) praised it for easing chest pain and calming the mind. Today, it’s still a staple in TCM for coughs, phlegm, and more2.

Traditional Uses in TCM
In TCM, balloonflower root is like a breath of fresh air for the lungs. Its bitter and pungent properties help “open” the lungs, clear phlegm, and soothe irritation. Here’s how it’s traditionally been used34:
- Coughs and Phlegm: Helps loosen sticky mucus and ease coughing.
- Sore Throat: Relieves hoarseness and throat pain.
- Lung Abscesses: Assists in draining pus from infections.
- Beyond the Lungs: Occasionally used for abdominal discomfort or to “move” stagnant energy.
Ancient records, like the Ming Yi Bie Lu (Miscellaneous Records of Famous Physicians), note its ability to “benefit the five organs” and treat throat pain, highlighting its versatility in herbal medicine5.
Health Benefits: What Does Science Say?
While TCM has long sung its praises, modern research is starting to uncover why balloonflower root works. Its key compounds—saponins like platycodin D—seem to be the stars of the show. Here’s a breakdown of its potential benefits:
1. Clears the Airways
If you’ve ever had a stubborn cough with thick phlegm, balloonflower root might feel like a natural ally6. It acts as an expectorant, helping your body expel mucus. Studies, like one in the Journal of Ethnopharmacology, suggest it has anti-inflammatory effects that could ease respiratory woes like bronchitis or sore throats.
2. Fights Inflammation
Chronic inflammation can wear your body down, but balloonflower root’s saponins may help7. A 2014 review found it has antioxidant and anti-inflammatory properties, potentially protecting against cell damage.
3. Boosts Immunity
Need a little immune support? Research hints that balloonflower root might encourage your body to produce more immune cells8. A small trial showed it improved immune markers in overweight adults—promising, though more studies are needed.
4. May Protect Your Stomach
In TCM, it’s used for tummy troubles, and science backs this up a bit9. A study found it reduced gastric secretions in rats, hinting at ulcer protection10.
5. Early Cancer Research
Some lab studies suggest platycodin D could slow cancer cell growth (e.g., lung cancer in mice)11. But hold off on the headlines—this is far from proven in humans.
A Word of Caution: While these findings are exciting, most come from animal or lab studies. Human research is still catching up, so don’t swap your doctor’s advice for a handful of roots just yet!
Summary: Traditional Chinese Medicine (TCM) values balloonflower root. Modern research shows its saponins might offer benefits like clearing airways, fighting inflammation, boosting immunity, protecting the stomach, and potentially slowing cancer cell growth. But most findings are from animal or lab studies.

How to Use Balloonflower Root
Ready to give it a try? Balloonflower root is flexible—here’s how people use it12:
1. Tea or Decoction
- How: Boil 3–10 grams of dried root in 2 cups of water for 20–30 minutes. Strain and sip.
- Why: Great for coughs or sore throats.
2. In Soups
- How: Toss it into a pot with rice, ginger, or licorice root for a soothing porridge.
- Why: A tasty way to support lung health.
3. Powder or Capsules
- How: Buy it pre-packaged and follow the label (or ask a pro).
- Why: Convenient for on-the-go use.
4. Topical Fix
- How: Grind it into a paste for skin issues like sores.
- Why: A traditional trick for abscesses.
In places like Inner Mongolia or Shandong, where top-quality Jie Geng grows, it’s even used in everyday cooking as a “food-medicine” herb—approved in China for limited dietary use.
Summary: Balloonflower root can be used in various ways. You can make it into tea by boiling, add it to soups, take it in powder or capsules, or use it topically. It’s also used in cooking in some areas and is good for health.
Safety and Side Effects
Balloonflower root is generally safe, but it’s not foolproof. Here’s what to watch for13:
- Mild Upsets: Too much can lead to nausea or vomiting—stick to 3–10 grams daily.
- Allergies: Rare, but stop if you notice a rash or breathing trouble.
- Pregnancy: No solid safety data here, so check with your doctor first.
- Chronic Issues: On meds or have a condition? Get a professional’s OK.
Quick Facts Table
Feature | Details |
---|---|
Scientific Name | Platycodon grandiflorum |
Other Names | Jie Geng, Platycodonis Radix, Balloonflower Root |
Main Uses | Coughs, phlegm, sore throat, lung support |
Forms | Tea, soup, powder, capsules |
Safety Notes | Mild nausea possible; avoid in pregnancy without advice |
Where It Grows | China (e.g., Inner Mongolia, Shandong), Korea, Japan |
Q&A
Q: Can balloonflower root help my cough?
A: Yes, it’s traditionally used to loosen phlegm and ease coughing. Try a tea with 3–10 grams of dried root14.
Q: Any side effects to worry about?
A: It’s usually gentle, but overdoing it might upset your stomach. Rarely, allergies pop up.
Q: Is it safe during pregnancy?
A: We don’t know enough yet—talk to your doctor first.
Q: Where can I find it?
A: Check Asian markets, health stores, or online for dried roots or supplements.
Q: How’s it different from honey-processed Jie Geng?
A: Honey-processed (honey Jie Geng) is gentler on the stomach and often used for dry coughs—same root, just prepped differently15.
The Bottom Line
Balloonflower root, or Jie Geng, bridges centuries of TCM wisdom with hints of modern promise. It’s a natural standby for clearing phlegm, soothing throats, and supporting your lungs—think of it as a little herbal helper when your breathing feels off. Science is still piecing together its full story, but early signs point to anti-inflammatory and immune perks. Just use it wisely: stick to recommended amounts, source it from trusted spots (like Shandong’s finest), and chat with a healthcare pro if you’re unsure.
Whether you brew it into a tea or toss it in a soup, balloonflower root offers a simple, time-tested way to care for yourself—rooted in tradition, with a nod to today’s curiosity.
Trusted Source
- https://sys01.lib.hkbu.edu.hk/cmed/mmid/detail.php?crsearch=cmpid&pid=B00076&page=1&sort=name_cht&lang=eng ↩︎
- https://baike.baidu.com/item/%E6%A1%94%E6%A2%97/16267873 ↩︎
- 丁地庆.桔梗的功效与应用述要[J].中国中药杂志, 1998, 023(005):308-309. ↩︎
- 徐大伟.桔梗食疗功效高[J].健身科学, 2014(12):1.DOI:CNKI:SUN:JSKZ.0.2014-12-029. ↩︎
- http://www.zysj.com.cn/lilunshuji/mingyibielu/117315.html ↩︎
- 张明远,代立娟,刘蕾,等.鱼腥草桔梗合剂止咳、祛痰及平喘作用研究[J].黑龙江医药科学, 2002, 25(5):2.DOI:CNKI:SUN:KXJY.0.2002-05-014. ↩︎
- https://www.mdpi.com/2076-3921/12/2/327 ↩︎
- https://pmc.ncbi.nlm.nih.gov/articles/PMC9952785/ ↩︎
- 柴峰,王俊杰.保和丸合桔梗汤治疗胃食管反流性咽炎[J].中国实验方剂学杂志, 2011, 17(10):2.DOI:10.3969/j.issn.1005-9903.2011.10.094. ↩︎
- 楼黎明,金若敏,符胜光,等.麦冬皂苷肠溶微球制剂对大鼠胃黏膜的影响[J].中药新药与临床药理, 2008, 19(4):2.DOI:CNKI:SUN:ZYXY.0.2008-04-008. ↩︎
- https://pmc.ncbi.nlm.nih.gov/articles/PMC4759477/ ↩︎
- https://www.baidu.com/bh/dict/ydyp_15563616709833529278?contentid=ydyp_15563616709833529278&query=%E6%A1%94%E6%A2%97&sf_ch=ch_search_5713&sf_ref=search&subTab=%E7%94%A8%E8%8D%AF%E8%AF%B4%E6%98%8E&from=dicta&isPageHome=1 ↩︎
- https://m.baidu.com/bh/m/detail/ar_3475972488299661831(Zhang Mengmeng, Deputy Chief Physician, Department of Traditional Chinese Medicine, Shandong Provincial Hospital) ↩︎
- 徐培森.一组治疗风热咳嗽桔梗川贝汤的组方:CN201710376715.0[P].CN108926661A[2025-03-19]. ↩︎
- https://sys01.lib.hkbu.edu.hk/cmed/mmid/detail.php?pid=B00076&page=1&sort=name_cht ↩︎