I've heard that people make coffee out of Chicory, is this true?!

I've heard that people make coffee out of Chicory, is this true?

Is it the kind of chicory that grows wild on the side of the roads?

Coffee with chicory has always been popular in the South, particularly around New Orleans.
We only drink coffee with chicory. It has a wonderful rich robust flavor for half the cost.
I order a case (12 pkgs) of Luzianne Regular and a case of Luzianne DeCaf about once a year. I mix one package of each and store in a container.
It only takes about 2 1/2 T. to make an entire 10 c. pot of coffee. When we travel, I pre-measure bags of the brew to take with us.
When my husband was deployed, the thing he missed most, next to me, was his coffee.
By the way, the Luzianne Company continued to pay its employees at full pay during the Katrina tragedy. Good socially conscious company.