Ju Hua

Ju Hua (Chrysanthemum Flower) is the dried capitulum (flower head) of Chrysanthemum morifolium Ramat., an herbaceous perennial plant in the family Asteraceae (Compositae). In the traditional TCM classification system, Ju Hua is considered sweet and bitter in flavor with a slightly cold nature. It enters the Lung and Liver meridians, giving it a central role in formulas that address exterior Wind-Heat patterns, Liver Fire, and Liver Yang rising.

Botanical description: Chrysanthemum morifolium is a much-branched, erect perennial herb reaching 60–150 cm in height. The stems are often woody at the base and covered with fine grayish hairs. The leaves are alternate, ovate to lanceolate, 5–15 cm long, deeply pinnately lobed or divided, with toothed margins. The upper leaf surface is dark green and somewhat rough, while the lower surface is pale and pubescent. The inflorescence is a capitulum (flower head) 2.5–10 cm in diameter, composed of numerous individual florets. The central disc florets are tubular and yellow, while the peripheral ray florets are ligulate and vary in color from white to yellow to purple, depending on the cultivar. The entire capitulum constitutes the medicinal organ. The dried flower heads have a characteristic aromatic odor and a slightly sweet, slightly bitter taste.

Habitat and cultivation: C. morifolium is native to China and has been cultivated there for over 3,000 years. In China, the primary producing regions include Zhejiang (Hangzhou area — the famous Hang Bai Ju), Anhui (Bozhou — Bo Ju, and Chuzhou — Chu Ju), and Henan (Huaiqing region — Huai Ju). The plant prefers well-drained, fertile soils in full sun and is commonly cultivated in fields and gardens. The flower heads are harvested in late autumn (October–November) when the petals are fully open, then dried in the shade or at low temperatures to preserve the volatile oil and flavonoid content. The drying process is critical for quality, as improper drying can lead to discoloration and loss of active compounds.

Quality markers: The Chinese Pharmacopoeia specifies that high-quality Ju Hua should consist of intact, well-formed capitula with a characteristic aromatic odor and a slightly sweet, mildly bitter taste. Premium-grade material is described as being dry, free from mold and insect damage, with a high proportion of intact florets. The content of luteolin-7-O-glucoside (luteoloside) and 3,5-dicaffeoylquinic acid are specified as pharmacopoeial quality markers, with minimum content requirements calculated on a dried basis. Different commercial varieties have distinct quality characteristics: Hang Bai Ju is known for its large, white flower heads, while Bo Ju and Chu Ju are smaller and yellowish.

Ju Hua is one of the most widely used herbs in TCM. In the traditional Chinese medicine theoretical framework, Ju Hua is understood in terms of its effects on specific patterns of disharmony (zheng). Because Ju Hua enters the Lung and Liver meridians and has a sweet, bitter, and slightly cold quality, it is traditionally indicated for a range of patterns involving Wind-Heat invasion, Liver Fire, and Liver Yang rising.

Dispersing Wind-Heat: Ju Hua is one of the most important herbs in TCM for resolving exterior Wind-Heat patterns. These patterns may present as mild fever, headache, slight aversion to wind, red and sore eyes, and a thin white or slightly yellow tongue coating. Ju Hua is particularly valued for its ability to clear Heat from the head and eyes. It is commonly combined with Bo He (Mentha haplocalyx) and Sang Ye (Morus alba leaf) in Wind-Heat dispersing formulas. Unlike some other Wind-Heat dispersing herbs that are strongly diaphoretic (such as Bo He), Ju Hua is considered milder and more suitable for cases where the Wind-Heat pattern is accompanied by headache and eye symptoms.

Clearing the Liver and improving vision: Ju Hua enters the Liver meridian and is traditionally used for Liver Fire blazing upward, which may manifest as red, painful, swollen eyes, blurred vision, headache, dizziness, and irritability. In TCM theory, the Liver opens into the eyes, and Liver Fire or Liver Yin deficiency can affect visual function. Ju Hua is traditionally used to clear Liver Fire and brighten the eyes. It is a key herb in the classical formula Qi Ju Di Huang Wan (Lycium, Chrysanthemum, and Rehmannia Pill), where it is combined with Gou Qi Zi (Lycium barbarum fruit) and Liu Wei Di Huang Wan to nourish Liver and Kidney Yin while calming the Liver.

Subduing Liver Yang: When Liver Yang rises due to Liver Yin or Kidney Yin deficiency, symptoms such as dizziness, tinnitus, blurred vision, and headache may appear. Ju Hua is traditionally used in combination with Yin-nourishing and Liver-calming herbs such as Sheng Di Huang and Mu Li (oyster shell) to subdue Liver Yang and anchor the spirit. Its mild, cool nature makes it suitable for long-term use in these patterns.

Clearing Heat and resolving toxicity: Ju Hua also has traditional uses for clearing Heat and resolving toxicity in skin conditions such as carbuncles, boils, and sores with heat signs. While its toxin-resolving action is considered milder than that of Jin Yin Hua (Lonicera japonica) orHuang Qin (Scutellaria baicalensis), it is sometimes used for external applications as a wash or poultice for skin inflammations.

Classical literature references: The Shen Nong Ben Cao Jing (Divine Farmer's Materia Medica Classic, circa 200 CE) classified Ju Hua as an upper-grade herb and recorded its traditional use for "treating Wind-Heat dizziness, headache, and blurred vision." The Ben Cao Gang Mu (Compendium of Materia Medica, 1596 CE) by Li Shizhen noted Ju Hua's ability to "disperse Wind, clear Heat, calm the Liver, and improve vision" and described its traditional roles in treating headache, red eyes, and dizziness. The Ben Cao Bei Yao (Essentials of Materia Medica) further elaborated on the differentiation between the various cultivated varieties of Ju Hua and their specific traditional indications.

Ju Hua contains a diverse range of bioactive compounds that have been the subject of extensive phytochemical and pharmacological investigation. The following overview summarizes the major chemical constituents identified in the flower heads of Chrysanthemum morifolium and what is currently known about them from published research.

Flavonoids (luteolin, apigenin, and their glycosides): Flavonoids are the most abundant and pharmacologically studied constituents in Ju Hua. Luteolin and apigenin, along with their 7-O-glucoside derivatives (luteoloside and apiin), are the primary flavonoid compounds. These flavonoids have been investigated in pre-clinical research for a wide range of potential pharmacological activities, including anti-inflammatory, antioxidant, neuroprotective, and hepatoprotective effects. Luteolin has been shown to inhibit pro-inflammatory mediators such as TNF-α, IL-6, and COX-2, and to modulate NF-κB signaling pathways. Apigenin has attracted research interest for its potential anti-inflammatory and anxiolytic properties. A comprehensive review by Liu et al. published in Journal of Ethnopharmacology (2024, PMID: 38621465) summarized the pharmacology of flavonoids from C. morifolium. However, most evidence comes from animal and in-vitro studies; robust human clinical data are limited.

Chrysanthemin and other anthocyanins: Chrysanthemin (cyanidin-3-O-glucoside) is an anthocyanin glycoside that contributes to the color of certain chrysanthemum varieties. Anthocyanins from Ju Hua have been studied for their antioxidant and anti-inflammatory properties in pre-clinical models. The specific clinical contributions of anthocyanins within whole-herb Ju Hua preparations are not fully established.

Essential oils (volatile components): Ju Hua contains a complex mixture of volatile oil constituents that contribute to its characteristic aromatic odor. Major components include camphor, borneol, chrysanthenone, α-pinene, β-caryophyllene, and various sesquiterpenoid compounds. The volatile oils are believed to contribute to the herb's traditional ability to disperse Wind-Heat and relieve headache. Some pre-clinical studies have reported antimicrobial and anti-inflammatory activities for the essential oil fraction. However, the specific pharmacological activities of the volatile oil fraction in the context of whole-herb Ju Hua are less well studied compared to the flavonoid constituents.

Phenolic acids: Ju Hua contains phenolic acids, including 3,5-dicaffeoylquinic acid (also known as isochlorogenic acid A), which serves as a pharmacopoeial quality marker. These compounds have been studied for their antioxidant and anti-inflammatory properties in pre-clinical research.

Polysaccharides: Water-soluble polysaccharides extracted from Ju Hua have been investigated for potential immunomodulatory and antioxidant activities. A review by Zhang et al. published in International Journal of Biological Macromolecules (2024, PMID: 39179070) summarized the extraction, structural characteristics, and health benefits of polysaccharides fromC. morifolium.

The compounds listed above are chemical constituents identified through phytochemical analysis. Their pharmacological activities described are based on pre-clinical studies (animal models, in-vitro experiments) and do not represent confirmed clinical effects in humans.

Ju Hua is a core ingredient in several important classical formulas in the TCM tradition for dispersing Wind-Heat, calming the Liver, and improving vision. Below are three key formulas that feature Ju Hua as a primary or significant component, along with their traditional indications and the role Ju Hua plays in each composition.

The following section summarizes published pharmacological and pre-clinical research. Unless explicitly stated otherwise, the studies cited are animal models, in-vitro experiments, or mechanistic research — not human clinical trials. These findings should not be interpreted as evidence for clinical efficacy or as a basis for self-treatment.

Anti-inflammatory effects: Luteolin, apigenin, and other flavonoid constituents in Ju Hua have been extensively studied for anti-inflammatory activity. Pre-clinical research has demonstrated that these flavonoids may reduce levels of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6), inhibit NF-κB and MAPK signaling pathways, and suppress cyclooxygenase-2 (COX-2) expression. A comprehensive review by Liang et al. published in Frontiers in Pharmacology (2025, PMID: 40176916) examined the antimicrobial, anti-inflammatory, antioxidant, and immunomodulatory properties ofC. morifolium and C. indicum, highlighting the central role of flavonoids in the anti-inflammatory activity of these herbs. While these findings are scientifically interesting, their clinical significance for human inflammatory conditions has not been established.

Antioxidant activity: Multiple pre-clinical studies have reported that Ju Hua extracts and their flavonoid constituents exhibit potent antioxidant activity. These compounds have been shown to scavenge free radicals, enhance endogenous antioxidant enzyme activity (superoxide dismutase, glutathione peroxidase, catalase), and reduce lipid peroxidation in animal models. The phenolic hydroxyl groups in luteolin and apigenin are considered to be the primary structural features responsible for the antioxidant activity. A review by Liu et al. (2024, PMID: 38621465) comprehensively summarized the antioxidant properties ofC. morifolium extracts.

Neuroprotective effects: Pre-clinical studies have investigated the potential neuroprotective effects of Ju Hua constituents, particularly luteolin and apigenin. These flavonoids have been reported to protect neuronal cells from oxidative stress-induced damage, reduce neuroinflammation, and modulate neurotransmitter systems in animal models. A narrative review by Gao et al. published in Frontiers in Cell and Developmental Biology (2026, PMID: 42255478) examined the role of chrysanthemum phytochemicals in neural tube development. However, robust human clinical data on the neuroprotective effects of Ju Hua are lacking.

Antimicrobial activity: In-vitro studies have reported that extracts of Ju Hua and its essential oil constituents exhibit antimicrobial activity against a range of Gram-positive and Gram-negative bacteria, as well as certain fungi. The essential oil fraction, particularly its camphor and borneol components, is considered to contribute to the antimicrobial effects. The clinical relevance of these in-vitro antimicrobial findings is uncertain, as the concentrations required for antimicrobial activity in-vitro may not be achievable through oral administration of whole-herb preparations.

Hepatoprotective effects: Some pre-clinical studies have investigated the hepatoprotective potential of Ju Hua constituents. A study by Xiong et al. published in Journal of Ethnopharmacology (2025, PMID: 39532220) reviewed the pharmacological effects of flavonoids from C. morifolium and other plants against liver and eye diseases. A 2026 study by Jiang et al. (PMID: 41759694) reported that germacrane-type sesquiterpenoids isolated from C. morifolium(Jinsi Huangju variety) exhibited protective effects against acetaminophen-induced liver injury in animal models through inhibition of apoptosis. These findings provide mechanistic insights and do not establish clinical efficacy for liver conditions in humans.

Anticancer potential: A 2026 study by Wang et al. (PMID: 41943328) reported that a sulfated pectin polysaccharide from C. morifolium induced ferroptosis in pancreatic cancer cells by stabilizing TFRC (transferrin receptor). While this finding highlights the potential of chrysanthemum-derived compounds in cancer research, it is a pre-clinical observation and does not constitute evidence for the clinical use of Ju Hua as a cancer treatment.

What the research does NOT show: Despite promising pre-clinical signals, the research on Ju Hua and its active compounds does NOT demonstrate conclusive clinical efficacy for any specific disease in humans. There is no robust evidence from large-scale, randomized, placebo-controlled clinical trials that Ju Hua can treat, cure, or prevent inflammatory disorders, neurodegenerative diseases, infections, liver disease, cancer, or any other medical condition. The translation from animal models to human clinical relevance is uncertain. This page does not endorse Ju Hua as a treatment for any condition.

Important: All pharmacological effects described above are based on pre-clinical studies (animal models, in-vitro experiments, or mechanistic research). They do not constitute evidence of clinical efficacy in humans. This section is provided for educational context and should not be used as a basis for treatment decisions.

General safety profile: Ju Hua is one of the most widely used herbs in TCM practice and is also consumed as a dietary tea (ju hua cha) in China and other East Asian countries. It is generally considered to have a favorable safety profile when used appropriately. However, like all herbal products, it is not free of risk. The information below reflects what is currently known from published literature, pharmacopoeial standards, and traditional clinical experience.

Spleen deficiency-cold patterns: In traditional TCM theory, Ju Hua is slightly cold in nature. Individuals with Spleen deficiency-cold patterns — characterized by loose stools, poor appetite, abdominal coldness and discomfort, a pale tongue with a white coating, and a tendency toward cold extremities — should generally use Ju Hua with caution. Its cold properties may worsen digestive weakness and increase loose stools in such individuals.

Qi deficiency with spontaneous sweating: Because Ju Hua has a dispersing nature, it may theoretically further deplete defensive Qi in individuals with significant Qi deficiency, particularly those presenting with spontaneous sweating. In such cases, it should be used only when there is a clear Wind-Heat or Liver Fire indication that outweighs the dispersing potential, and should be combined with Qi-tonifying herbs under professional guidance.

Allergic reactions: Ju Hua belongs to the Asteraceae (Compositae) family, which includes ragweed, daisies, marigolds, and sunflowers. Individuals with known allergies to these plants may experience cross-reactive allergic reactions to chrysanthemum products. Allergic reactions may include skin rash, itching, sneezing, or respiratory symptoms. Any suspected allergic reaction should be evaluated by a healthcare professional.

Pregnancy and lactation: Ju Hua does not have a specific traditional contraindication during pregnancy when used in moderate amounts in formula combinations under professional guidance. It is also commonly consumed as a tea during pregnancy in many East Asian cultures. However, because of its slightly cold nature and dispersing properties, it is traditionally considered that pregnant women with significant Spleen deficiency-cold should use it with caution. Modern pre-clinical data on Ju Hua constituents in pregnancy are insufficient to fully establish safety. Ju Hua should only be used at medicinal doses during pregnancy under the professional guidance of a qualified healthcare practitioner.

Drug interactions: Pre-clinical data suggest that certain flavonoid constituents in Ju Hua, including luteolin and apigenin, may affect the activity of hepatic cytochrome P450 enzymes (particularly CYP2C9 and CYP3A4), which could theoretically alter the metabolism of drugs processed through these pathways. Because Ju Hua has demonstrated anti-inflammatory and antioxidant activities in pre-clinical models, there is theoretical potential for additive effects when combined with anti-inflammatory medications. The essential oil constituents may have mild sedative effects, theoretically potentiating the effects of sedative or anxiolytic medications. Clinical interaction data for whole-herb Ju Hua are very limited. Consult a qualified healthcare professional before combining Ju Hua with any prescription medications.

Reported side effects: Based on available reports, side effects associated with Ju Hua are generally rare and mild when used at appropriate doses. Occasional reports include mild gastrointestinal discomfort (nausea, bloating, or loose stools, particularly in individuals with pre-existing Spleen weakness), dizziness, and allergic reactions (skin rash, itching) in sensitive individuals. Any suspected adverse effects should be reported to a healthcare professional.

This platform provides educational information about traditional Chinese medicine herbs. It does not recommend, endorse, or prescribe the use of Ju Hua or any other herbal product for the treatment of any medical condition. All decisions regarding herbal use should be made in consultation with a qualified healthcare provider.