I saw some nice citrus trees at Home Depot in Covington. I need to check Lowes to see what they have. I bought a pink lemon with variegated leaves at Spencer's feed store in Covington.

I saw some nice citrus trees at Lowes and at South Lousiana Seed Co in Houma.

Lowes, HD, Stine's, Marshall's Nursery, all have citrus in lafayette. Even all the Walmart's have citrus. It depends on what you are looking for I guess. The popular ones around here seem to be the kumquats, satsuma, meyer lemons, variegated lemons (Lowes and h.d.), key lime, persian lime, ruby red grapefruit, I got a red navel (aka cara cara) and moro blood orange trees at HD. They also had other types of navels. I saw louisiana sweet orange at HD and Stine's (the stine in Abbeyville). They also had dwarf key limes. I have ordered some more unusual citrus from four winds nursery (in calif. that can ship to LA) this year and have been extremely pleased with the quality of their trees. Hope this helps. Good Luck
~SJN