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 you haven't already done so in March, you should fertilize the lawn now - at least a light soil. Use a high-quality lawn fertilizer to provide your lawn with the nutrients it needs.