Definition of medicinal plants; Aspects of the market; Motives for cultivation. Influence of the choices in cultivation on concentration of the active principles. Propagation: seed, production and choice; direct sowing; nursery; asexual propagation; transplant. In vitro propagation. Secondary metabolites. Use of medicinal plants in rotations and intercropping. Extraction of active principles, methods, types and their conservation. Extraction by carriers, juicing, drying, steam distillation. Aspects of legislation.

Special section: thyme, rosemary, mint, sage, saffron, oregano, marjoram, myrtle, licorice, fennel, lemon balm, chamomile , Roman chamomile, mauve, lavender and hybrids, savory, milk thistle, St. John's wort, helichrysum, basil, dill, coriander, calendula, valerian. For the model species: origins and diffusion, plant cultivation, the main aspects of farming techniques, collected parts and main uses, cultivation, any special processing.