Tu BiShvat (Hebrew for the 15th day of the Hebrew month of Shvat) is the new year of the trees.
"15th of Shevat;" New Year of the Trees; Jewish Arbor Day, which is a minor festival.
Jewish communities around the world marked the "new year for the trees" last week with tree planting ceremonies and seders that celebrate Israel's seven species (wheat, barley, grapes, figs, pomegranates, olives and dates if you are keeping track!).
While my neighbors were putting their Christmas trees to the curb, in what seems like a ritual of replacement, I was preparing to plant for Tu BiShvat.