There is no single watering schedule that suits every landscape. How often a sprinkler system should run depends on plant type, soil, weather, sun exposure, and whether plants are newly established or mature. Use these factors to set a schedule:
- Check the soil: Water when the root zone begins to dry rather than relying only on a fixed calendar. Sandy soil usually dries faster than clay soil.
- Group plants by need: Lawns, shrubs, trees, and flower beds may need different watering times. Separate schedules help avoid giving every area the same amount.
- Water according to growth stage: Newly planted greenery often needs more frequent attention while roots establish. Established plants may need less frequent watering.
- Adjust for conditions: Reduce or pause scheduled watering after substantial rain, and reassess during heat, wind, or seasonal changes.
When watering, aim to moisten the soil around roots rather than repeatedly wetting only the surface. A simple check is to probe the soil after a cycle; if it is dry below the surface, the cycle may be too short. If it is soggy or runoff appears, reduce the duration or split watering into shorter cycles. Watering in the early morning can limit evaporation and give foliage time to dry. Review the schedule periodically, since plant needs and weather change throughout the year.

