There are many mixes of grass seed to help blend your new grass with your existing lawn. Ella Maxwell from Hoerr Nursery says planting grass seed is more than just throwing the seed and walking away. You need good seed-to-soil contact by raking the weeds out of the area and turning over the soil with that same rake. When finished, you can turn the seed back into the soil without having to put top soil over it. You can also employ a starter fertilizer to kick-start your grass seed planting process or use it to just green up your lawn.