"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.
Tu BiShvat (Jewish Arbor Day) is the time of year when Israeli schoolchildren plant trees. Perhaps it’s no coincidence that a teacher instituted the tree-planting custom.
When a wildfire leveled my home when I was 20, I fell into a deep depression. Later, when I began to re-engage, I started to associate my emergence with Tu BiShvat.
Miraculously, a delicate network of threads is emerging amongst us, linking us heart to heart.
"15th of Shevat;" New Year of the Trees; Jewish Arbor Day, which is a minor festival.