In some months it is difficult to obtain certain herbs. This has everything to do with the natural growth process of herbs. Let us explain. For herbs, it is spring from mid-April to late June. The best time for perennial crops like thyme, rosemary, marjoram, oregano and sage to reproduce by producing flowers. During this process, all energy goes to the flower and the energy supply of the plant is negligible. Result: quality and shelf life sometimes is below acceptable level, causing lower supply you are used to.