Evergreen content is content written with the goal of driving traffic to a website for a long period of time. In some cases, such as when the content is historical and will never change (something like the presidency of Zachary Taylor), the content can live for the life of the website with little or no updating. In other cases, the content may have a long lifespan but must be updated every few years. An example of this would be something like “year end tax strategies for seniors”, which changes every few years as the tax laws change.