Getting a lawn into fine condition requires following certain unyielding rules regarding the conditioning of the grass plant as well as the conditioning of the soil.
Getting the weeds under control with a selective herbicide is a good first step. A good herbicide should be mixed properly in a pump sprayer, then applied on a mild day at least 24 hours before and after a rainfall. It will take a number of days, but the weeds should dry up. It usually takes several applications to fully eradicate many weeds.
The fertility of the soil under your lawn may be the most important aspect of building a good and healthy lawn. We fertilize our lawns with an organic blend of macro and micro nutrients. This is a very healthy and natural way to fertilize your lawn on a regular basis. Many synthetic fertilizers travel through the foliage and into the root system of the plant but they do not modify the fertility of the soil.
There are many opinions about the timing for seeding, but we like the first 2 weeks in September as the optimal time to over seed. there should be plenty of time before the weather turns colder for the seeds to germinate and a good root system to bed in the fresh soil. Spend a little extra money on a high quality seed that is suitable for the sun conditions. Don’t be lured by a 100% bluegrass seed, a blend of seeds with Blue Grass, Rye and Fescue mixed is the best. 30 days of irrigation will ensure that the maximum amount of seeds will germinate. The cool nights should provide plenty of evening moisture. Plan to irrigate after the morning dew evaporates and early enough that the lawn will dry up before sundown.