I live in zone #7. My mom has 1/2 her front lawn in centipede, it has been there for about 10 yrs. This is probably the coldest winter in a while. I fertilized it with a 28-5-12 w/fe in the lated fall. The grass seems to be dead or just not active yet. I've noticed some warm season grass in this area just now becoming active. What do you think? Thanks.