yes, I am in zone 4, near the border of Canada. It gets below zero all winter, and these come back and flourish every year! (mine are outside all year)
ive been battling cancer for a very long time and have recently gotten into making my own homemade all natural diy products...i noticed certain things call for this flower and i can infuse oils with it and everything....and certain things like this can be very expensive online to buy from natural ingredient sites....can u tell me...does it take long to grow and can i grow it inside???? please let me know because i would be very interested in getting this!!!