"Tu" (the Hebrew abbreviation of 15th) in the month of Shvat was set (Hillel's opinion generally overrules Shammai's) as the beginning of the tithable year for tree fruit: Calculating the tithe on fruit starts again for fruit that sets after that date.
The actual Rosh Chodesh celebration is hardly mandated, so there's a lot of room for creativity in designing a ritual celebration. Here are a few ideas for starting your own.
Here is the quintessential Jewish question: How do we emulate God? We are told that we were created by God. We are told that we have a divine spark within us.
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.
Tu BiShvat is a reminder that we spend our lives planting seeds. Time and effort are needed for our efforts to bear fruit. Wait patiently. One day, like the seed, we will be blessed.
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!).