The seder for Tu BiSh’vat
is full of imagery and symbolism meant to mark the four seasons. Additionally, the
seder is split into four themes, each of which represents a different Kabbalistic description of the relationships that we have with the earth:
Assiya (Actualization),
Yetzira (Formation),
Beriah (Creation),
Atzilut (Nobility). This
seder can be a time of reflection, a time to look at our impact on the world around us and change the way to interact with our environment during the coming year.
You can find a text for a seder at http://rac.org/pdf/index.cfm?id=21825&pge_prg_id=14202&pge_id=3010
You may also purchase copies of a text, Seder Tu BiSh’vat-The Festival of Trees at http://www.ccarpress.org/cgi-bin/pressdisp.pl?list=30081