Upon installation of your new landscaping a good fertilizer (we like to use 14-14-14 wax coated slow release fertilizer) should be applied to all the plants.
For the first 30 days we recommend watering your new landscaping once a day for 30 minutes to get the plants established.
Once established (after 30 days), water your landscaping 2 times a week for the next month. After that, water once a week from then on out.
FYI- water restrictions do not apply on newly landscaped yards. You must show proof of new landscaping with your receipt and the citation will be lifted.