It is crucial to ensure that succulents are in indirect sunlight. If kept indoors, make sure the plant is receiving adequate light. The sap can cause skin irritation. The most common causes of a succulent turning yellow are overwatering and submersion. The main cause of your succulent turning yellow is excessive water. Avoid storing it in the afternoon as the scorching sun can cause the roots to lose as much water as possible. Don't water your Sempervivum for several days after repotting. Let it dry before repotting. Let's now get to know more about the cactus.