AppLE TrEe Rabbi Arthur Waskow Special to The Jewish News n an era where "the greens" become key coalition partners in some countries, the environmen- talist lobby grows everywhere, and recycling regulations are common, observance of Tu B'Shevat, the upcoming Jewish New Year of Trees, is spreading quickly. More than any other Jewish festi- val, Tu B'Sehvat, which begins this year at sundown Sunday,_ Jan. 31, is the celebration of Growing-and- Becoming. Interestingly, there is no halachah, or Jewish law, that defines its observance. It springs wholly from the spiritual depth and growth of the Jewish people, in rela- tion with the One Who always beckons us to grow and in relation with the earth where all things grow. Time To Tithe The 15th day of the mid-winter Hebrew month Shevat appears as a special date of Jewish obser- vance in the Mishnah, the earlier section of the Talmud, which records the rhythm of Jewish life in the Second Temple times (ending in 70 C.E. with the holy structure's destruction by the Romans). In classic talmudic debate, the House of Shammai says that the observance should be on the first day of the month; the House of Hillel argues for the 15th day. They both are concerned with tax law: how to divide the year for purposes of tithing. Each year, one-tenth of the increase of the earth — one-tenth of the fruit of a tree, one-tenth of the lambs of the flock, one-tenth of the new-sprouted barley — was brought to the Temple in Jerusalem to be offered to God. Then it went to the priests and the poor for eating. The decision followed, as usual, the teachings of Hillel: the 15th, the full moon of deepest, wettest winter, came to define the new year for tithing on a tree. 1/29 1999 72 Detroit Jewish News As The r e Grows 'Eco-Judaism's' spiritual joys are on the rise, reflects a noted Jewish thinker on the eve of Tu B'Shevat.