The general trends found in Saxony for the harvested plants could be confi rmed. Interestingly, the overall yield after the fi rst year remained almost constant with all plants, but there is a strong dependency on the triterpene content with harvest time. The fi rst cut in June contains mainly monoterpenes and can be further processed for tea, spice etc. The second cut in September shows an increased triterpene content (maximum here for both acids is about 6%) and even better results could be achieved if the plant is under a poly - tunnel
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Usually, the useful life is four to fi ve years and for soil recovery a four - year interval is recommended. If the plants are used to gain pharmaceutical extracts, all cultivation steps (sowing, manuring etc.) must be documented and with pest management any pesticide (date, dosage etc.) must be registered. With sage the use of herbicides is forbidden and two cuts per year are recommended. After air classifi cation the leaves are dried and according to the Deutsches Arzneibuch only 2% impurities are allowed.
