Lawn care prices vary if you want the service by the hour, week or month. Some price ranges are $100 to $200 per month so if you want to find a good price, we recommend getting a few estimates.1  Mowing ($270) - Mowing the lawn is traditionally a DIY project, but it's an easy area to neglect and worth the cost to outsource. Mowing ($270) - Mowing the lawn is traditionally a DIY project, but it's an easy area to neglect and worth the cost to outsource. 2  Fertilizing ($350) - Lawn fertilization ensures soil stability and plant health.