Herb

Bai He

Lily bulb | 百合

Bai He

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Properties

Yin-tonifying herbs (补阴药) · Slightly Cool

Traditionally supports*

Respiratory Health Sleep Support Emotional Wellbeing Post-Illness Recovery

Parts Used

Bulb (鳞茎 lín jīng)

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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About This Herb

Traditional Chinese Medicine background and properties

Herb Description

Lily bulb is a gentle, food-grade herb widely used in Chinese medicine to moisten the lungs and calm the mind. It is commonly taken for persistent dry coughs, insomnia, anxiety, and restlessness, especially after a fever or period of emotional stress. Also popular as a nourishing food, it can be added to soups and porridge.

Herb Category

Yin-tonifying herbs (补阴药)

Main Actions

  • Nourishes Lung Yin
  • Clears the Heart and calms the spirit
  • Stops Cough
  • Clears Heat

How These Actions Work

'Nourishes Yin and moistens the Lungs' means Bai He replenishes the fluid-like nourishing substance (Yin) in the Lungs, restoring moisture to dried-out respiratory tissues. This is why it is used for dry coughs that linger after an illness, coughs with little or sticky phlegm, or coughing up small amounts of blood. The Lungs in TCM need adequate moisture to function smoothly, and Bai He's sweet, cool nature gently restores that moisture without being overly cold or harsh.

'Clears the Heart and calms the spirit' means Bai He can settle mental restlessness, anxiety, and insomnia caused by residual Heat disturbing the Heart. In TCM the Heart houses the mind and emotions, so when Heat lingers there (often after a fever or from emotional stress), it can cause difficulty sleeping, palpitations, mental confusion, or even feelings of sadness and a desire to cry. Bai He's cool nature gently clears this Heart Heat and soothes the spirit. This is the basis of the classical "Lily Disease" (Bai He Bing) described in the Jin Gui Yao Lue, where a person feels restless and disoriented after an illness.

'Stops coughing' refers specifically to chronic dry coughs from Lung Yin deficiency or Lung dryness. It does NOT treat acute coughs from colds or infections with copious phlegm. The herb's moistening quality addresses the root cause of the cough (dryness), rather than simply suppressing the cough reflex. When honey-processed (Mi Bai He), this cough-stopping action is stronger.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Bai He is traditionally associated with these specific patterns.

The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.

Why Bai He addresses this pattern

Lung Yin Deficiency means the Lungs lack the moisture and cooling fluids needed to function properly, leading to dryness and Heat signs in the respiratory system. Bai He's sweet, cool nature directly nourishes Lung Yin, restoring the moistening function that the Lungs depend on. Its ability to moisten dryness and stop coughing addresses the core pathomechanism of this pattern, where depleted Yin leads to a dry, unproductive cough. The herb enters the Lung channel and provides gentle, sustained Yin nourishment without being so cold that it damages digestion.

A practitioner would look for one or more of these signs

Dry Cough

Persistent dry cough with little or no phlegm

Bloody Sputum

Phlegm streaked with blood

Dry Throat

Dry, scratchy throat

Hoarse Voice

Hoarse or weak voice

TCM Properties

Temperature

Slightly Cool

Taste

Sweet (甘 gān), Bitter (苦 kǔ)

Channels Entered
Heart Lungs
Parts Used

Bulb (鳞茎 lín jīng)

This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page

Product Details

Manufacturing, supplier, and product specifications

Product Type

Granules

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Botanical & Sourcing

Quality Indicators

Good quality dried Bai He consists of scales (petals) that are uniformly sized, thick and fleshy, yellowish-white in color, firm in texture with minimal fibrous veins (jin). The pieces should be relatively translucent when held to light, with a smooth surface. The taste should be slightly sweet with a mild bitterness (medicinal varieties are mildly bitter, while sweet varieties lack medicinal value). There should be no sour or pungent smell, which would indicate sulfur fumigation. Sulfur-fumigated Bai He appears unnaturally white and develops an acidic odor over time. Authentic medicinal Bai He has a faint, clean, starchy smell. Avoid pieces that are dark, discolored, moldy, or excessively thin and papery.

Primary Growing Regions

The principal production areas are Hunan, Hubei, Jiangsu, Zhejiang, and Anhui provinces. The most prized terroir (dao di yao cai) for medicinal Bai He is Anhui province (especially the Xuancheng area), whose product is known as "Xuan Bai He" and considered the finest quality. Hunan province (particularly Longshan county and the Shaoyang area) is the leading producer of medicinal-grade Juan Dan (Lilium lancifolium) bulbs and is nicknamed the "homeland of Lily" (卷丹百合之乡). The famous "Dragon-Tooth Lily" (Long Ya Bai He, 龙牙百合) landrace from Hunan and Jiangxi is especially renowned. Note: Lanzhou lily (a variety of L. davidii) is primarily a sweet edible vegetable variety, not the same as the medicinal-grade species listed in the Chinese Pharmacopoeia.

Harvesting Season

Summer to autumn (typically harvested after flowering in late summer through early autumn). Cultivated bulbs are planted in September-October and harvested the following autumn after the Mid-Autumn Festival.

Supplier Information

Treasure of the East

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Miscellaneous Info

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Usage & Safety

How to use this herb and important safety information

Important Medical Disclaimer

The information provided here is for educational purposes only and is not intended as medical advice or to replace consultation with a qualified healthcare professional. This herb is a dietary supplement and has not been evaluated by the FDA. It is not intended to diagnose, treat, cure, or prevent any disease.

Always consult with a qualified healthcare provider, particularly if you are pregnant, nursing, have a medical condition, or are taking other medications. Discontinue use and consult your healthcare provider if you experience any adverse reactions.

Recommended Dosage

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Instructions for safe storage and consumption

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Traditional Dosage Reference

Standard

6–12g

Maximum

Up to 30g in decoction for severe Yin deficiency with dry cough or marked insomnia, under practitioner supervision. In classical formulas such as those from the Jin Gui Yao Lue, fresh Bai He was used in much larger quantities (seven whole bulbs, equivalent to approximately 240g fresh, or about 100g dried).

Notes

Use lower doses (6–9g) for mild calming and Heart-nourishing purposes. Use higher doses (9–12g or above) for significant Lung Yin deficiency with dry cough. Honey-processed Bai He (Mi Bai He) is preferred for moistening the Lungs and stopping cough, while raw Bai He is stronger for clearing Heart Heat and calming the spirit. In classical Bai He Bing formulas, fresh bulbs were traditionally soaked overnight in water until a white foam appeared, which was then discarded before decocting, a method believed to enhance the herb's purifying action.

Processing Methods

Processing method

The clean lily bulb scales are mixed with a small amount of refined honey diluted in warm water, left to absorb the honey, then stir-fried over low heat until no longer sticky to the touch. The standard ratio is 5 kg of refined honey per 100 kg of Bai He.

How it changes properties

Honey-processing enhances the sweet taste and strengthens the moistening, Lung-nourishing, and cough-stopping actions. The thermal nature shifts very slightly warmer, but remains cool overall. The honey adds its own Lung-moistening and Qi-tonifying properties, making the processed form gentler on the Stomach and more strongly focused on the Lungs.

When to use this form

Choose Mi Bai He when the primary goal is to moisten the Lungs and stop a chronic dry cough, especially in Lung deficiency with prolonged coughing or coughing blood. The raw form (Sheng Bai He) is preferred when the goal is to clear Heart Heat and calm the spirit, as in insomnia and restlessness.

Toxicity Classification

Non-toxic

Bai He is classified as non-toxic in the Chinese Pharmacopoeia and has a long history of safe use as both food and medicine. Earlier literature reported that lily bulbs contain trace amounts of colchicine (a potent alkaloid found in the unrelated Colchicum autumnale), but a rigorous 2026 LC-MS study screening five Lilium species found no colchicine or any of its 15 biosynthetic precursors in any lily tissues, providing strong evidence that Lilium species do not actually contain colchicine. The bitterness of medicinal lily varieties is now attributed to other compounds. Nevertheless, animal studies have suggested a possible teratogenic effect at high doses, so caution during pregnancy is still advised. At standard medicinal dosages, Bai He has an excellent safety profile consistent with its dual food-medicine status.

Contraindications

Caution

Wind-Cold cough (cough due to external cold invasion with thin white phlegm). Bai He is cold in nature and moistening, which would trap the cold pathogen and worsen the condition.

Caution

Spleen and Stomach deficiency-Cold with loose stools or diarrhea. The cold, slippery nature of Bai He can further impair already weakened digestive function.

Avoid

Known allergy to Bai He. Rare allergic reactions have been reported in clinical case studies.

Caution

Conditions with excessive dampness or phlegm-damp accumulation. Bai He's moistening quality may aggravate fluid stagnation.

Special Populations

Pregnancy

Use with caution during pregnancy. Although Bai He has a long history of food use and is generally considered mild, animal experiments have suggested a possible teratogenic effect at high doses. The mechanism is not fully established but may relate to bioactive alkaloid or saponin compounds in the bulb. While standard culinary amounts are unlikely to pose risk, medicinal doses during pregnancy should only be used under professional guidance when clearly indicated.

Breastfeeding

No specific concerns have been documented for breastfeeding. Bai He is widely consumed as a food in East Asia and has a gentle, nourishing profile. Its moistening and Yin-nourishing properties are generally compatible with the postpartum period. Standard medicinal doses are considered safe during breastfeeding, though as with any herb, professional guidance is recommended.

Pediatric Use

Bai He is considered gentle and safe for children at reduced doses proportional to age and weight. As a food-grade herb, it is commonly given to children in soups and porridge. For medicinal decoction, children's doses are typically one-third to one-half the adult dose. Suitable for children experiencing dry cough or restless sleep due to mild Yin deficiency.

Drug Interactions

No well-documented pharmacological drug interactions have been established for Bai He at standard doses. Earlier literature attributed colchicine content to lily bulbs, which would have implied interactions with CYP3A4 inhibitors and statins. However, recent LC-MS research (2026) has found no colchicine in Lilium species, making such interactions unlikely. As a precaution, patients on immunosuppressive medications should consult their practitioner, since Bai He polysaccharides have demonstrated immunomodulatory activity in preclinical studies.

Dietary Advice

Bai He's cold, moistening nature pairs well with warm, easily digestible foods such as congee, soups, and steamed dishes. Avoid cold, raw foods and iced drinks while taking Bai He medicinally, as these may compound its cold nature and burden the Spleen. Combining Bai He with warming digestive ingredients like ginger or red dates in cooking can help balance its cooling effect, especially for those with weaker digestion. Bai He is commonly prepared with rock sugar, lotus seeds, or tremella (silver ear fungus) as a nourishing sweet soup.

Cautions & Warnings

Although this herb is typically safe for most individuals, it may cause side effects in some people. Pregnant women, nursing mothers, postpartum women, and those with liver disease should use the formula with caution.

As with any Chinese herbal remedy, it is advisable to seek guidance from a qualified TCM practitioner before beginning treatment.