I started going to the gym in February and followed the same workout plan until now. A few weeks ago I started running and it makes it difficult to keep going to the gym as often as before. I was wondering if this two days per week workout plan would be good enough to grow (or at least maintain) muscles:
I'd agree with the other commenter, you'd be better off doing 2 full body days instead of hitting each muscle just once a week.
It's also extremely important to make sure you're going close to failure. Since you're working out twice a week, it's even more important to make sure you maximize your effective reps.