They are a native species to the SouthEast USA. They are very drought tolerant and only like a good bit of water when they're making flower buds. They like margional temperatures, and they have a very slow germination rate. The seeds are smaller than ground pepper.
They are classified as a succulent. Search at Burpeeseeds.com
My North American Wildlife bok says its native to the southeast USA.I has a picture that is dead to rights. Portulaca grandiflora.
Thats the latin name on the seed pack as well.
In the book the area of nativity includes the southeast.[/quote
Here is another link from the usda Germplasm Resources Information Network.It may be growing in the southeast but it is not native to the usa.
http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?29451
I was not trying to be a pain Botonist,i am no expert.My wife told me what book to look in for the answer to your question.She also gave me the link i provided.She knows what she is talking about when it comes to plants,she was writting a plant book when she started going blind from glaucoma.I now have the pleasure of taking care of her over 200 house plants.I don't know the names of a quarter of them,but she does and in latin alsPH
Be careful with that GoGrow, they'll spread out so keep them in check.
Poppies are really bad in the south. Plant them one year and yourll never get ride of them.