• Basic Watering Information
• General Tips
• Watering Device Types
• Common Irrigation Challenges
• Sample Irrigation Schedules

Basic Napa Valley Watering Information

What Time of Day Should I Water?

In Napa Valley, we recommend watering between 2 a.m. and 6 a.m. Watering within this window of time takes advantage of relatively low winds and less loss of water to evaporation.

How Long Should I Water?

Generally, in Napa Valley, running an irrigation system on a lawn for more than five minutes will result in runoff. Precise watering times vary depending on the type of watering device, soil, slope and plants.

How Often Should I Water?

Water in the early morning hours between 2 a.m. and 6 a.m. as follows:

SUMMER NO MORE THAN EVERY OTHER DAY	FALL NO MORE THAN 3 TIMES PER WEEK
SPRING NO MORE THAN 3 TIMES PER WEEK	WINTER NO MORE THAN 1 TIME PER WEEK

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