Roll lawn to level out uneven areas caused by freezing and thawing soil
Aerate to open up compacted soil
Overseed bare areas
Apply pre-emergent herbicide in early spring
Start mowing only after grass has started to actively grow again (Mower height depends on your species of grass and your climate, but the general rule is to mow slightly lower int he spring and fall; higher in summer)
Apply a light dressing of low-nitrogen fertiliser in late spring
SUMMER
Apply grub control product in early suummer
Mow grass regularly. (Adjust mower height in weather extremes: in drought conditions, mow higher and less often; in a wet season, mow slightly lower and more often)
Trim grass edges
Fertilise and feed if necesssary, but do not use these products during dry spells
Water grass deeply, but only when really needed
AUTUMN
Dethatch and sweep up debris
Aerate compacted soil if you did not do this in the spring
Overseed bare areas if you did not do this in the spring. Apply seed about a month before the first frost
Apply a light dressing of fertiliser once in early autumn and again in late autumn
For final mowing, raise the mower height slightly
Spray perennial weeds
WINTER
Perform maintenance on lawn care equipment according to your owner's manuals
Sharpen mower blades
Remove fallen branches and winter debris as necessary