Peanut Grass aka Perennial Peanut aka Ornamental Peanut 

Well said ......... Well appreciated. Thank You much.

Thanks. Really helpful

Why not use something native to Florida like Frog Fruit or Sunshine Mimosa? Both are beautiful and great for the ecosystem.

I have this grass and initially tried to kill it because it is vary invasive in gardens and landscape areas. Once I found out what it was (previous owners planted it), I've been researching in how to control it. You don't get advice on how to control peanut grass. I've gotten compliments on it. In order to get the yard efficient, and appealing, it is a lot of work if it's planted in the wrong places of the yard without a 2' deep -->and possibly an 18" wide barrier. It's Easy maintenance otherwise. Goes almost completely bare during cold weather, but if you add Bermuda grass, they seem to compliment each other in seasonal changes. This is my personal experience.

How would this do in North Florida St Augustine area? We get frost.