Did you ever walk into a restaurant, look at the menu and see where a specific item is coming with ‘seasonal ‘vegetables’? Here’s some information about what you might expect to be served.
View the chart: https://cuesa.org/eat-seasonally/charts/vegetables
See more seasonal charts about fruits, nuts, flowers and more: http://www.cuesa.org/seasonality-charts
CUESA - Cultivating A Healthy Food System for these informational charts.