Q: Can I still aerate my lawn in November? A: Yes, if soil temps are above 55°F — especially for fescue lawns. Q: Do I need to water my lawn in fall? A: Yes, about one inch per week keeps roots healthy through winter. Q: What weeds appear in Oklahoma lawns during fall? A: Henbit, chickweed, annual bluegrass, and wild mustard. Q: When should I stop mowing my lawn? A: Once growth fully stops — usually late November in Oklahoma.