I started these from seed a few years ago and they were such a delight in my garden! They bloomed the first year from seeds, grew pretty fast, and have spread nicely since. The seeds were easy....
Delosperma, 10-40 days germination at 75 deg F., sow on the surface of well-draining soil, needs light for germination. I pressed the seeds into the soil but did not cover them with soil. I put a clear thin baggie over top of the cell pack after sowing the seeds, and placed the cell pack under shoplights. As the seeds germinated, I tented up and eventually removed the plastic piece. Great plants with very cute flowers!

I wintersow my hardy iceplant cooperi seeds. Just sprinkle them on the top of well moistened miracle grow potting mix in a container. Press them into the soil, cover with ziploc baggie with air holes and drainage holes and put them outside. They go out in first week in March and are germinating by mid April, planted out first week in June.
never had a failure with them and have at least 15 plants every year.
Need to sow them every year as they don't survive my cold New England winter in zone 5

I too winter sow my ice plants. I did them about 3 weeks ago and they are already coming up.

Thank you all so much for the information. So much I didn't know...good to find out they need light to germinate. I'm looking forward to these pretty little plants in my garden.

I am trying to find seed of cooperi. Where did you locate yours. I am also looking for seed of delosperma John Profittt and sutherlandii.

Thanks Bill