In many households, crown daisy goes straight into a rolling hot pot, left to simmer in spicy broth until the leaves turn limp and dark.
Some food writers and traditional diet advocates say that approach defeats the point.
Known in Chinese as tonghao and historically called the “Emperor’s Vegetable,” crown daisy, also referred to as garland chrysanthemum or chrysanthemum greens, has long occupied a place at the intersection of cuisine and herbal tradition.
A vegetable once associated with imperial tables
Historical Chinese medical texts, including the Compendium of Materia Medica (Bencao Gangmu), describe crown daisy as helping to calm the mind, support the spleen and stomach, dissolve phlegm, and benefit the intestines.
Modern nutritional analysis presents a complementary picture. Crown daisy is a low-calorie leafy green, providing roughly 16 to 24 kilocalories per 100 grams. It contains essential amino acids such as serine, aspartic acid, glutamic acid, leucine, and phenylalanine. Protein levels range from about 1.7 to 3.36 grams per 100 grams, while dietary fiber averages around 3 grams.
Success
You are now signed up for our newsletter
Success
Check your email to complete sign up
The vegetable is particularly rich in beta-carotene, often measuring approximately 1.5 to 3 milligrams or more per 100 grams, in some cases exceeding spinach. It also contains vitamins A, C, and K. Vitamin K levels can reach up to 350 micrograms per 100 grams, significantly higher than typical daily requirements for adults.
Mineral content includes potassium, ranging from about 220 to 567 milligrams, along with calcium at roughly 65 to 120 milligrams and iron at about 2 to 2.5 milligrams. Magnesium, sodium, zinc, folate, and other B vitamins are also present.
In addition, crown daisy contains volatile essential oils, choline, and chlorogenic acid, an antioxidant compound.
Traditional and modern views on its effects
Within traditional Chinese medicine theory, the vegetable’s distinctive fragrance is considered central to its function. The aroma is believed to stimulate saliva production, support appetite, and aid digestion. Its fiber content is associated with improved bowel movement and relief from constipation.
Amino acids, vitamins, and choline are described as supporting cardiovascular health, mood stability, and cognitive function. The plant’s fragrant qualities are also said to help “moisten the lungs” and reduce phlegm, potentially easing cough and throat discomfort.
From a modern nutritional standpoint, its potassium content may assist with fluid balance and blood pressure regulation. Antioxidants such as beta-carotene, vitamin C, and chlorogenic acid are associated with immune support and protection against oxidative stress. Iron and calcium contribute to blood and bone health, particularly for women, pregnant individuals, and older adults.
Despite its nutrient density, advocates note that moderation remains important, as excessive intake may not be suitable for everyone.
Why aroma matters
Supporters of traditional preparation methods argue that crown daisy’s volatile oils, which give it its characteristic fragrance, are among its most valuable components.
In Chinese medical theory, this “fragrant qi” is described as helping to clear stagnation and refresh the mind. Scientifically, volatile oils are heat-sensitive compounds that dissipate under prolonged exposure to high temperatures.
Extended boiling, especially in hot pot, can drive off these aromatic elements. What remains is softened fiber with diminished fragrance.
A quick-cooking approach
A commonly recommended method emphasizes high heat and minimal cooking time.
The wok is heated thoroughly, oil is added, and the crown daisy is stir-fried for no more than 30 seconds before being removed from the pan. The leaves should remain crisp and aromatic rather than fully wilted.
Prolonged boiling, blending the vegetable raw into juice, or cooking it in excessive oil are often described as less desirable methods when the goal is to preserve aroma and nutrient content.
Dietary habits and preventive health
Some proponents frame the discussion more broadly. They argue that everyday food preparation choices, rather than occasional medical treatment, play a larger role in long-term health outcomes.
In that view, how crown daisy is cooked becomes part of a preventive approach to diet. Whether valued for its historical associations, nutritional profile, or distinctive aroma, the vegetable remains a staple of winter markets. Preparing it with restraint may help retain the qualities that earned it the title “Emperor’s Vegetable.”
