Stunning photo!

The Erodiums don't seem to get a lot of attention but they are so lovely, IMHO. Thanks for commenting.

I don't suppose they are very cold hardy? I am z5a but this winter is more like a z4.

I'm zone 7, but it seems to depend on the species. I've seen Erodium x variabile sometimes sold as a groundcover reported to be hardy to zones 5/6. I've also read that E. corsicum is one of the parents of this naturally occurring hybrid and that it's the hardiest of the genus and hardy to zone 4. E. chelianthifolium is rated to zone 5. Most others are listed only to zone 7 or higher.

Thank you!! Maybe i'll try it.

You're welcome. I hope you can find a variety that will work for you. So worth the effort. ♥