The answer to 'frequency of seeding' is that most lawns should be seeded every 1-3 years. Seeding is an important part of lawn maintenance to help thicken and fill in your grass, especially in areas that have become thin or bare. The ideal time to seed your lawn is in the fall, when temperatures are cooler and there is more moisture in the soil to help the new grass establish.
The frequency of seeding can vary depending on factors like your climate, grass type, and how much foot traffic your lawn receives. In general, most homeowners should plan to overseed their lawn every 1-3 years to maintain a healthy, thick lawn. This helps fill in bare spots and keep weeds at bay. Be sure to prepare the soil properly and use high-quality grass seed for best results.