Hmm, lots of posts, no mention about planting seeds. (never mind me, I'm a curmudgeon!)
I have a lot of Adeniums, sometimes called.Desert Roses. One is planted in mostly perlite. I sprinkled a whole packet of double portulaca seeds around the edge of the pot. They ALL sprouted! Wa! Looks rather like a beard right now. Am wondering when to attempt moving, or maybe transplanting. Sheesh, there are hundreds! Photo coming in a day or two.