On the one hand where the natural grass needs all kinds of maintenance like watering, mowing, weeding or fertilizing etc. But if you are using synthetic grass, then, your luck turned up, because it does not require any special type or kind of maintenance.
A gentle application of broom or leaf blower to take away leaves and dust may be necessary. You can easily wash the whole turf with water or any household cleaner. This is just about all the maintenance you are going to need with the synthetic grass.