They can work really well, as they are simple to use, prevent grass from growing in clumps, and should give you a nice, uniform lawn. ... As well as preventing the rain from disturbing the seeds, the blanket also locks in the right amount of moisture for the germinating grass.

Should I roll in grass seed?

Rolling should be done when the crop is still relatively small so the plants are not damaged. It can be done when the soil is damp - but not too wet - and must take place when there is no imminent frost risk. Either a flat or Cambridge (ring) roller can be used to good effect.

How do I speed up grass seed germination?