Bad herbs

I bought freshmark rosemary leaves from shoprite. After opening it turned brown. I don't know why because I'm used to buying my herbs from shoprite and never had problem. The change was noticeable due to the fact that I had bought parsley as well and opened them same time. The parsley remained fresh and green whereas the rosemary changed its colour to brown even the smell changed.

I still have the pack should you wish to collect it.