Jusqu'à combien de semaines Baba Marta - BG?

Baba Marta (Bulgarian: ???? ?????, "Granny March") is the name of a mythical figure who brings with her the end of the cold winter and the beginning of the spring. Her holiday of the same name is celebrated in Bulgaria on March 1 with the exchange and wearing of martenitsi. Baba Marta folklore is also present in southern and eastern Serbia where it is a reference as to a freezing weather change after a spring break.