that is something to think about but i dont think shes turnining purple becaus of genetics it must be the cold its a setiva and from what iv read thats a tropical strain.i had a branch that broke of my plant way back in early sept and i stuck it in another pot and it has been doing great its in my shed in the window and its still green its only about 6 inches tall but it hasent got the cold like mom did and mom is realy purple and daugter is light green.but i do wonder why and what makes it turn purple is it some kind of protectiv mecinnisim with in the plant? any cemist on here with the ansers? thanks again everybody for your thoughts and input.