All my antennaria grow in full sun, so I have no experience with part shade. They do get weeds growing in them. But they seem to be very tolerant of my pulling/digging out the weeds. For me transplants seem to just take right up. All I do is scratch the surface of the new area a bit, slide something under a section to move, drop in the new spot, and simply tamp down a bit. Oh and some water to start. It amazes me how it just grows right in and never seems to have any sulky transplant period.
