While some of the U.S. has had a rainy spring, many states like California are in a drought already or expecting one. How can you grow a successful garden and still conserve water? The answer is to control the placement, quantity and duration of watering. Done well your plants will thrive. See below for some ideas.
Of course if you live in a place where there is plenty of water to spare, you can still benefit from drip systems and timers. They help prevent the excess watering that many plant-diseases thrive on, and weeds are denied unintended watering.