It takes about one lawn season from seed. If the soil is warm (and I do mean the soil, which warms up slower than the air) and if you keep the surface of the soil moist, give it 7-10 days for most of the seed to germinate. Then you have to nurse along the tender baby grass as its root system expands, which can be a challenge in West Texas. ---------- The grass isn't really established until it starts sending out stolons (runners) along the soil surface. Roots develop on the stolon at the node (nodes are thick little bumps on the stem where leaves/roots/branches form on plants) ------------------ The grass-growing process goes faster if you plant sprigs, which are little chunks of grass with roots along the stolons. You could dig them up from other parts of the yard, or buy them. Keeping them moist is critical as the roots take hold. You could also by sod -- you don't need enough to cover the whole yard, because the grass will eventually fill in the bare areas. ------------------- Given that you have a dog AND live in a dry climate AND probably have rocks all over your yard (like I did in Austin), maybe go with Plan B? How about making paths around the yard using bark mulch (I used to get mine for free from tree services; not as pretty as the stuff in bags, but it IS free) and use those rocks to define the edges of the path. That way the dog has a place to run. In the areas between the paths, you could grow grass, or things more fun than grass, like vegetables in raised beds, or pots of flowering plants.