How many cultivars of Salvia greggii exist? There is no specific answer, as there is no registry of this plant and new cultivars are frequently created. In the Chicago Botanic Garden "An Evaluation Study of Tender Salvias", there were 30 cultivars of Salvia greggii studied. What a gorgeous color of flower. This was developed by North Carolina nurseryman, the late Richard Dufresne.
For Salviaphiles, the Chicago Botanic Garden evaluation study is a must read. You can find the pdf document here: An Evaluation Study of Tender Salvias