Well a bit to late this year to start now. But you might have limited success if you live in some place like Florida where first frost comes in late November or early December.

But in general you rip up sprigs and cut them into about 4 to 6 inch lengths so you have at least two nodes at the end of each sprig to work with.

Excavate a small furrow, place sprigs in furrow and cover nodes and stem in soil. Leave grass blades uncovered or else it will die.

Keep watered until sprigs set roots.

I would add to that that you can greatly improve the spreading of surrounding St Aug by watering twice as often as you normally would, fertilizing with organic fertilizer every 3 weeks, and normal mowing. I was very surprised that the fertilizer was that important. A good rate to start with organics is 10 pounds per 1,000 square feet. Then go to 20 pounds and hold there for a few months. You can start that now.

Where do you live?

I live in Columbus, GA

That location is good. I was hoping you were south of the transition zone. It should be spreading better in these cooler times.