Ice plant in dry stacked rock wall
Has anyone tried using ice plants (Delosperma congestum ) in betweeen the rocks of a dry stacked wall? Also, they are supposed to be hardy to zone 5 but I want to be sure they will survive our winters (Technically I am in zone 5b/6 but like to stay well within my zone when planting). I love these plants but this is my first year with them and don't want to plant them in the wall if there is a chance they will not overwinter.
Thanks in advance for any advice or suggestions