It is considered to be the best time to overseed lawns in springtime from March to early May, and then from the end of August into September.
Autumn is the best time to overseed and try not to do this in the summer time. If you seed in high heat, you’ll most likely be wasting your time, so avoid seeding during hot summer days, and choose a colder day instead.
Its necessary to make sure the grass seeds don’t completely dry out. They need moisture to survive. Water well, but ensure the seeds don’t get washed away by too much pressure, and keep moist to ensure the seeds germinate. The lawn will need mowing but start low in spring and raise the setting.
For newly sown seeds, make sure the grass is at least 5cm to 8cm before you cut on a high setting.