Does anybody know of a good place to get seasonality information for fruits and veggies?

I found an open source application[1] for showing that stuff, and have been looking around to be able to add information for the North America region. [2]

The FDA database is good and this one is too, but they don't offer any seasonality about fruits or veg :/

[1] https://flunzmas.com/seasonal-foods-calendar/

[2] https://github.com/seasoncalendar/seasoncalendar/issues/115