Adromischus maculatus 'Calico Hearts' is generally an easy succulent to care for, but there are a few common problems it may develop if conditions are not ideal: Root rot - Excess moisture and poor drainage are the most significant threats. Soil that stays soggy can lead to root rot, causing leaves to wrinkle, drop, and develop brown spots/rot on the stem end. Allowing the soil to dry out between waterings helps prevent this. Mealybugs - Like many succulents, Calico Hearts can be susceptible to mealybugs. Check leaves and stems regularly for signs of cottony bumps, which are mealybugs feeding. Wipe off with a cotton swab dipped in rubbing alcohol or isopropyl alcohol. Increase airflow and dryness to reduce mealybug favorability. Spider mites - Excessively dry, dusty conditions promote spider mites which weaken the plant by webbing leaves together and sucking sap. Increase humidity with a humidity tray or pebble tray. Mist occasionally with a spray bottle. Lack of light - Insufficient light leads to leggy growth, sparse leaf arrangement, and faded variegation. Place in a bright spot, such as near a sunny window. Supplemental lighting may be needed for some. Overpotting - While repotting as the rosette expands is occasionally needed, frequent potting up in succession leads to root rot due to inability to thoroughly water without soaking the roots. Only increase pot size slightly at each repotting. Excessive fertilizer - Although Adromischus maculatus 'Calico Hearts' benefits from balanced, moderate fertilizer during the active growing season, too much can cause leaf curling, burning and Injury. Never apply at full strength and discontinue in dormancy. Cold damage - Dormant in winter, Adromischus maculatus 'Calico Hearts' is not fully cold hardy. Extreme cold can cause leaf browning, dropping and stem damage. Move potted plants into a warmer area like near a sunny window or use a grow light. Covering provides some protection but drastically reduces light needed for health.