St. Johns County prohibits watering between 10:00 am and 4:00 pm. The best time of the day to water is early morning before 10:00 am. If you water in the early afternoon the water evaporates too quickly. If possible, do not water after 4:00 pm or before 4:00 am (fungus disease activity is encouraged in dark and wet conditions.) For complete irrigation rules you can visit SJRWMD website at www.sjrwmd.com/irrigationrule.