No, You soak the soil in the evenings, then during the day the heat evaporates the water as well as helps the plants to suck it up into the plants since they lose water through the leaves. Watering early morning doesnt throughly soak the soil like the water seeping through overnight, and if the plants get wet it just damages them, where the natural dew in the mornings is more healthy for the plants that chlorinated water, where the soil also helps neutralize that as well overnight when the plant is least active.