Bermuda Grass, Centipede Grass. Southern Turf, Tropical Turf. Most rapid growth occurs spring, fall. Plants stop growing during hot summer. Most rapid growth occurs later spring to late summer.
Southern grasses are dormant in winter.
The germination time depends on variety. Thatch is the term used to describe the build-up of dead plant parts between soil and surface. Thatch only occurs with spreading types of grass, such as Bermuda Grass and bluegrasses. It's NOT always a problem. But a very thick build-up of thatch, over a period of years, can prevent water from penetrating to roots.