What is the shelf life of CBD flowers?

Cannabis buds go bad within 6 months to one year. After one year, they do not necessarily become toxic, but they may lose their potency, meaning at that point, you can smoke or vape as much as possible and it won't yield any effect. However, if it is stored in a way that allows moisture to develop and you begin to see molds on the flower, do not use it for any reason as this may be toxic.