This is Salvia greggii `Desert Blaze', which is patent protected.

Rich, have you seen much reversion in the foliage on 'Desert Blaze'?

thank you very much for the quck response.

It is pretty stable, but occasionally a side shoot will revert.

If the seeds for this salvia are grown, will the variegation be lost?

More than likely, if the variegation is virally induced. If it is genetic, then the seedlings may come true.