My Firestorms Have Spots & Some Little ‘damage’ Marks. What Is The Cause?

Question

They have always been in a pot and I started seeing the spots while they were still outdoors. They were brought indoors ahead of frost/freezes here in Santa Fe, NM. The Firestorms are spreading and otherwise look great.

Answer 1

The damage marks could be insect feeding or from water splashing on the leaves. Spots could be from a fungal infection or from watering with city water. Spraying with a fungicide may help. Next summer, try catching rainwater to water your succulents in containers. Here is more:

https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/best-water-for-succulents.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/watering-succulent-plants.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/sedum/firestorm-sedum-care.htm