First, you'll want to rake up any leaves or debris on the ground. You can either compost them or dispose of them in the trash. Once you've cleared the surface, it's time to apply some fertilizer. A general all-purpose fertilizer can be used, but make sure to read the label and follow the instructions. If you have a weed problem, you can also use a weed killer at this time. Just be careful to avoid getting any weed killer on your grass, as it will likely kill it too. Finally, give your lawn a good watering after applying anything new to it.

You should put a fertilizer on your lawn in early spring. Look for a product that is high in nitrogen, which will help your lawn to grow lush and green. Make sure to read the instructions carefully, and avoid over-fertilizing, which can damage your lawn.