If you leave these wildflowers growing in your yard the butterflies will come for them to drink their nectar. If you do not have them in your yard most transplant very well. Generally the perennials transplant well, but the annuals usually need to be started from seed, unless you can find seedlings to transplant.
These are just a few of the Florida wildflowers that are nectar plants. A Florida wildflower guide can help you to identify these beauties. Let them grow where you can, or transplant them creating a large a patch and mow around them. The butterflies will appreciate it PLUS they are free and usually can be found in your yard … or a friend’s. Remember, when transplanting, to remove any flowers or fruit and all but a few leaves so that the plant can recover from the shock more quickly.