Lapidaria margaretae, also called Karoo Rose, is a very nicely shaped and colored mesemb with yellow flowers. It needs bright light and a mineral soil. It loves regular shallow waterings. Lapidaria margaretae can withstand minimum temperatures of -3 °C.
Cultivation is best done from seeds. I sow the seeds (do not cover them) on 100% pumice (Bims). Seeds should sprout within a week or so. Give the seedlings plenty of air when they finished germination.