The product
What Vertumnus is building
Vertumnus is a consumer web product for creating printable posters that show seasonal farmers-market produce. Its public site lets visitors explore a visual view of produce timing for its currently supported regions, with information about the project’s data sources and build process. The product is publicly accessible and was recently shared by its independent maker.
From the maker
Vertumnus launches printable produce-seasonality posters
Vertumnus was shared by its independent maker on Hacker News in September 2026, with the project’s official site documenting its current regional scope and methodology. This entry does not claim universal seasonal accuracy, market coverage, sales, or maker endorsement.