Watering in the fall
The surface of the soil has to be kept moist until the seed germinates. Once it has sprouted the soil moisture has to be deeper to encourage the roots to grow deeply. Dig a hole or stick a screwdriver into the soil to make sure the soil is moist. If not, water. https://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG85_Watering_Tips_...