According to Persian calendar, today is Sizda Be-dar, translated as “thirteenth in outdoors,” which is a Persian festival. It is part of the Nowruz celebration rituals that’s held annually on the thirteenth day of Farvardin (the first month of the Persian calendar that’s also the start of Spring). During this day people spend time picnicking outdoors.
Another tradition of Persian new year is to setup a Haft-Seen (translated as the seven seen’s) that is a tabletop arrangement of seven symbolic items starting with the letter Seen in the Persian alphabet. These items include:
Sabzeh – wheat, barley, mung bean or lentil sprouts growing in a dish, which symbolizes rebirth.
Samanu – sweet pudding made from wheat germ – symbolizing affluence.
Senjed – dried oleaster Wild Olive fruit – symbolizing love.
Seer – garlic – symbolizing the medicine and health.
Seeb – apple – symbolizing beauty.
Somāq – sumac fruit – symbolizing (the color of) sunrise.
Serkeh – vinegar – symbolizing old-age and patience.