In New Orleans on St. Patrick's Day - Cabbages, carrots and potatoes are traditional for St. Patrick's parade since the Irish's most known meal is corned beef and cabbage, which includes potatoes (an Irish national vegetable) and the carrots for color.

 CORRECTION ----------------------------------------

The Green--Cabbage---represents the Catholics
The Orange--Carrots--represents the Protestants
The White--Potato---represents Unity

Just like the flag.

CORRECTION ----------------------------------------

I'm Irish - and have never known Corned Beef to be an Irish dish. Bacon & Cabbage -
Yes, but Corned Beef - NO.

Also, how about

GREEN - THE LAND
WHITE - THE PEOPLE
GOLD - THEIR HEARTS