Does anyone know of any sources of Pycnanthemum pycnanthemoides, the Southern Mountain Mint? Is this the large flowered variety common in Calloway Gardens in Georgia? The plant I'm looking for is not Pycnanthemun incanum, the Hoary Mountain Mint.
I don't know if the particular plant you are looking for has any synonyms, and I don't know where you are located in PA, but Redbud Native Nursery, located in Edgemont (right outside of Media) has two Pycnanthemums listed on the plant list: P. muticum (mountain mint) and P. tenuifolium (narrow-leaf mint). I also know that she is constantly updating her stock, based on client's demands/suggestions... Good luck.
cydonia33