Fill an ice cube tray approximately 1/3 full of water.
Freeze the tray.
Remove the tray from the freezer and scatter grass seeds over the tops of the ice in each section of the tray.
Pour water into the tray until it is full and place the tray back into the freezer.
Freeze for one to two days.
Remove the tray with the seeds prior to planting and let them thaw at room temperature.