April’s Lawn Care Checklist – What to Do Now. As soon as the ground temperature is above eight degrees Celsius, you can get started.
A vigorous cut stimulates the lawn to grow and makes it thicker. If gaps have appeared in the lawn, April is a good time for reseeding. If the open area is not filled with grass seeds, weeds can spread easily. If you haven't already done so in March, you should fertilize the lawn now - at least a light soil.