Can the leaves of Agastache be eaten raw?
Generally, the leaves of the Agastache (Huoxiang) should not be consumed directly, as doing so may cause discomfort. They need to be processed before use. Detailed explanations are as follows:

The leaves of Agastache contain volatile oils and other components with a strong aroma. When consumed directly, these substances may irritate the mouth and gastrointestinal tract, causing oral discomfort and symptoms such as nausea. Moreover, untreated Agastache leaves have a coarse texture, making them difficult to chew and digest. Consuming them directly does not provide a pleasant eating experience and may burden the gastrointestinal system.
In addition, Agastache leaves are typically used medicinally or as a seasoning. When used medicinally, they must undergo specific processing procedures; when used as a seasoning, they also need to be washed, chopped, and otherwise processed to reduce irritation and achieve their intended effects. Direct consumption is neither a conventional usage method nor effective.
In daily life, if you want to use Agastache leaves, you can wash them thoroughly and then use them for making soups, stir-frying, or brewing tea. Through appropriate cooking or processing methods, you can both enjoy their unique flavor and reduce irritation. At the same time, consumption should be moderate to avoid discomfort from excessive intake and to maintain a balanced diet.