When is the best time to water the garden?
Early morning (5:00 to 9:00 am) is the best time to water the garden when using a sprinkler, garden hose, or any other device that wets the plant foliage. When watering is completed, the plant foliage dries quickly. The rapid drying of plant foliage helps guard against the development of fungal diseases. Additionally, a morning application allows the water to soak deeply into the soil with little water lost to evaporation.
Watering at midday is less efficient because of rapid evaporation. When using a sprinkler, midday watering can also be wasteful as strong winds may carry water onto the driveway, patio, or other nearby areas.
Watering in the evening with a sprinkler or garden hose can lead to greater disease problems as the plant foliage will likely remain wet throughout the night.
Mornings and evenings are excellent times to water gardens when using a drip irrigation system or soaker hose. Watering in the evening isn’t a problem as these methods don’t wet plant foliage.