Lawn--Feeding Your Lawn--Every spring remove dead grass with a rake, aerate, & apply compost. Fertilize right before it rains. Do not over fertilize. Water deep in the Spring to promote deep roots. Never mow more than 1/3 of the total grass height & mow when grass is dry. The best time to reseed the lawn is in the Fall (not competing with weeds for nutrients) Water daily 1-2 weeks, and lightly fertilize after grass has reached 1"