Idea One
Aerate the soil in the back in hopes of loosening up the yard so that water can better penetrate and the grass gets the water it needs to grow.
Idea Two
Change the soil of the yard to a looser composition in order for water to penetrate and give the grass the best nutrition it could have.
Idea Three
Water the grass more frequently in order to penetrate the existing soil so the grass can grow.
Aerate the soil in the back in hopes of loosening up the yard so that water can better penetrate and the grass gets the water it needs to grow.
Idea Two
Change the soil of the yard to a looser composition in order for water to penetrate and give the grass the best nutrition it could have.
Idea Three
Water the grass more frequently in order to penetrate the existing soil so the grass can grow.