Autumn is good for root drugs

At the Medicinal Herbs Centre of the Faculty of Medicine of Masaryk University, it is time to harvest roots, rhizomes, and tubers.

23 Nov 2025 Anna Novotná Alumni Employees

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It is the ideal time to harvest roots and rhizomes, which are useful in medicine and pharmacy. As a storehouse for surviving the winter, they contain the most reserves and active substances. At the Medicinal Herbs Centre of the Faculty of Medicine of Masaryk University, roots with medicinal potential from a relatively large number of species and with a wide range of effects on human health are harvested. The best in terms of content are roots that are three years old or older. The harvest must therefore be thought of in advance, and for use, for example, for student or scientific work, growths of root drugs of different ages must be grown.

This year, we harvested marsh mallow (Althaea officinalis) from perennial plants, which is used for respiratory or digestive tract problems due to its mucilage content, valerian (Valeriana officinalis) for insomnia or nervousness, and the adaptogen scull cap (Scutellaria baicalensis). In local natural conditions, the roots of withania (Withania somnifera), known as ashwagandha, are harvested as annuals. After a year, turmeric (Curcuma longa) rhizomes can also be harvested in our conditions. One- or two-year roots of burdock (Arctium spp.), because these plants only live for two years.

The collected plant material is further processed by drying at the Center. Some drugs require further processing, such as peeling, cutting, or crushing. In addition, dietary tubers of interest are harvested every year - yacon (Smallanthus sonchifolius) and Jerusalem artichoke (Helianthus tuberosus). These are delivered fresh to the Department of Public Health of the Faculty of Medicine of Masaryk University.


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