Just a note of levity, my ice plants I planted this spring got trimmed back by kangaroo rats. They are gone, completely. And to think the nursery told me they were "animal pest resistant."
The few cuttings of other plants I have done, I dip them in root hormone and plant in wet sand. But since ice plants are kind of soft plants, you might try suspending them in water. A couple folks on this site have home built hydroponic plant propagators and have done really well with them. The plants are suspended in air within the contraption and the plant tips are constantly sprayed with nutrient rich water. Neat.
Hey beav, I notice your post count is currently "one". Why not stop in at the New Member section and introduce yourself, whether you are New or Just Returned. See ya.
High desert grass and shrubland, zone 5, cold desert of Northern Nevada. Reporting live from the deadly Forty Mile Desert of Nevada.
Mr Beav........My front yard is lined with ice plants. They are the only plant that will grow along the roadside. Doesn't require care and is so thick, weeds stay out. But now they need a barrier. I am putting down a row of brick to keep them in bounds..... .........what I am doing with the ones I remove and move.......I use the shovel and scoop up a shovelful, roots and all. Then place in a prepared area. They do need frequent watering when moved at this time, will look crappy for a week or so, then they will get going................don't try the individual pieces, too hard to get them going, a large clump is best to transplant, and they must have some roots to move, can't root them.
I have had hardy ice plants in my yard for over 15 years, and have transplanted them often. I just break off a sprig and put it in the soil where I want it. Water it, and there ya go ! It grows just fine with no fussing. Since these are succulents, if you put them in water to root them, they will just rot.
As long as the piece has some root on it, they should do just fine. I just gave away a shovel full, and some edge pieces separated into many individual pieces. All have taken to their new home just fine.