Q.Schlumbergera
Schlumbergera Leaves are yellowing on the edges and branches are falling off. I don’t see any pests and it’s happening to every one of my schlumbergera plants, I have many of all ages. I don’t let them dry out, only dry slightly on top and they do get some direct sun from a window a few feet away. What is wrong?
Yellowing leaves can be watering issues, pest, disease or improper lighting.
These links will help you pinpoint the issue.
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/leaf-drop-on-christmas-cactus.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/advice-for-christmas-cactus-care.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/christmas-cactus-fertilizer.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/christmas-cactus-root-rot.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/christmas-cactus-diseases.htm
https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/christmas-cactus-soil.htm