Tu Bishvat is also the anniversary of the foundation in 1949 of Israel’s parliament – the Knesset. Some 2,000 children and other guests participated in a variety of events including the creation of flowers from recycled materials. Tu Bishvat is celebrated today as an ecological awareness day.
https://www.jewishpress.com/news/israel/the-knesset/knesset-celebrates-70-years/2019/01/21/