"Because Nowruz coincides with Judaism’s major spring holidays, certain traditions from Nowruz fuse with Jewish traditions, from cuisine, cleaning, and purity rituals, to the ascetics of arranging symbols." (source)

"Norouz, the secular holiday for the Persian New Year that coincides with the first day of spring, is also celebrated by all." (Sephardic Heritage Cookbook: Ottoman, Persian, Moroccan, Egyptian Recipes and More by Sephardic Temple Or Chadash Sisterhood)