How can you water your veggies too much when they are consisted up of over 90% water?
Cabbage = 93% Water
Cauliflower = 92% Water
Broccoli = 91% Waterp
Use a rain gauge. This simple device will let you how much rain your garden has consumed.
Soak. Try and encourage plants to send it's roots deep into the ground. Deep roots help plants better sustain stresses caused by hot and dry weather.
Water early: You'll lose less water to evaporation by watering before the heat of the day sets in.
Don't Water late in the afternoon. The seedlings will likely stay wet all night, which can lead to fungal and disease problems.