I don't know if you can call what I have as a garden. More like a random collection of plants. But what I have acquired over the last couple of years has been almost exclusively native wildflowers.
Acacia farnesiana
Acmella repens
Amsonia tabernaemontana
Borrichia frutescens
Cephalanthus occidentalis
Chamaecrista fasciculata
Conoclinium coelestinum
Cornus drummondii
Crinum americanum
Desmanthus illinoensis
Elephantopus carolinianus
Erythrina herbacea
Hibiscus moscheutos ssp. moscheutos
Hibiscus moscheutos ssp. lasiocarpos
Hibiscus coccineus
Hibiscus laevis
Hydrolea ovata
Hymenocallis liriosme
Hypericum hypericoides ssp. hypericoides
Indigofera suffruticosa
Kosteletzkya pentacarpos
Lantana urticoides
Mimosa strigillosa
Opuntia engelmannii,
Opuntia humifusa
Opuntia fragilis
Passiflora incarnata
Polygonum hydropiperoides
Pontederia cordata
Ratibida columnifera
Rudbeckia hirta
Sagittaria lancifolia
Sagittaria latifolia
Sagittaria platyphylla
Silphium radula
Yucca louisianensis
Probably a few others I'm can't think of at the moment.