Hello John, there are three species of Sideritis on this garden, cypria, phlomoides and syriaca. All plants came from Gerard Weiner, pepiniere Vaugines at Lucca Murabilia 2016. So far all seem to be flowering well so I could send seed to you in due course if you would like it. They are now growing in a pot with sharp drainage and plenty of sun as I lost a previous S. cypria in winter. It is one of my favourite grey leaved plants.