re: Planting native grass in pines

Wiregrass isn’t native to Louisiana but little bluestem and big bluestem would work well but they do need sunlight You will need seed to bare soil contact to get them to come up If you buy the seed, you can rent a native grass drill and drill in the seed

I would make sure you don’t have any invasives and tackle those before you plant rather than after. Much easier to deal with then before