do st augustine seeds exist?

our deed restriction cmmunity allows only st augustime lawn, a big portion of front yard was burned out , i think i ruined it of too much fire ants spread and other pests solutions .
any how, i need to replant almost 300 sq with lawn, i called a couple of places and the least offer was $250, they will remove the old "dead and pale" lawn and replace it with new lawn,
my question is: i have never heard of st augustine seeds, i was thinking of speading those seeds over some good soil top that i can buy
or any other suggestions?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.