An information providing method for an information providing system including a scent imparting apparatus , a scent detecting apparatus , and an information management apparatus , the information providing method comprising: adding (S1), by the scent imparting apparatus , a scented substance to a plant; transmitting (S6), by the scent imparting apparatus to the information management apparatus , product information that includes added-substance information indicating a first substance that is the scented substance and production information regarding the plant; receiving (S7), by the information management apparatus , the product information; storing (S8), by the information management apparatus , the product information in a production information storage unit ; detecting (S11), by the scent detecting apparatus , a second substance that is at least one of the scented substance or a metabolite of the scented substance released from a target plant; transmitting (S12), by the scent detecting apparatus to the information management apparatus , detected-substance information indicating the second substance; receiving (S13), by the information management apparatus , the detected-substance information; transmitting (S17), by the information management apparatus to the scent detecting apparatus , in a case where the second substance indicated by the received detected-substance information is the same as the first substance indicated by the added-substance information included in the product information stored in the production information storage unit or is the same as a metabolite of the first substance, the production information included in the product information stored in the production information storage unit ; receiving (S18), by the scent detecting apparatus , the production information from the information management apparatus ; and presenting (S19), by the scent detecting apparatus , the received production information. adding (S1), by the scent imparting apparatus , a scented substance to a plant; transmitting (S6), by the scent imparting apparatus to the information management apparatus , product information that includes added-substance information indicating a first substance that is the scented substance and production information regarding the plant; receiving (S7), by the information management apparatus , the product information; storing (S8), by the information management apparatus , the product information in a production information storage unit ; detecting (S11), by the scent detecting apparatus , a second substance that is at least one of the scented substance or a metabolite of the scented substance released from a target plant; transmitting (S12), by the scent detecting apparatus to the information management apparatus , detected-substance information indicating the second substance; receiving (S13), by the information management apparatus , the detected-substance information; transmitting (S17), by the information management apparatus to the scent detecting apparatus , in a case where the second substance indicated by the received detected-substance information is the same as the first substance indicated by the added-substance information included in the product information stored in the production information storage unit or is the same as a metabolite of the first substance, the production information included in the product information stored in the production information storage unit ; receiving (S18), by the scent detecting apparatus , the production information from the information management apparatus ; and presenting (S19), by the scent detecting apparatus , the received production information. <EOS>