Cracked leaves (edema) on succulents are usually caused by overwatering, which can cause the leaf cells to rupture. The spots won't spread and aren't harmful to the plant, but they can affect Succulents vs. Cacti: What's the Difference? Planet Desert How to care for black knight philodendron? How to Propagate Succulents Methods, Care & Growing Guide Planet Desert Lego succulent display with real pots