Many medicines that are used today come from the active ingredients found in plants that would have been used in traditional herbal remedies. For example, the well-known painkiller, aspirin comes from willow bark, and artemisinins the malaria treatment, comes from sweet wormwood. Find out more about the garden and medicinal plants in this short video from WCAIR (Wellcome Centre for Anti-Infectives Research).
You can learn even more from the rescource sheets.