Today is Tu B’Shevat. What does that mean exactly? Well, “tu” stands for the number 15 (the Hebrew letters tet and vav) and Shevat is the current month – meaning today is the 15th of Shevat. Tu B’Shevat is the day which serves as the New Year for Trees. On this day, some people eat from the seven species that are grown in the land of Israel (wheat, barley, grapes, figs, pomegranates, olives, dates), plant trees or send money to plant trees in Israel, or have Tu B’Shevat seders – meals where various fruits are sampled. Here is an infographic I found with more about this holiday:
[source]