Why Does My Pencil Cactus Have Yellowish Tips?
I have a 30-inch tall bush-like pencil cactus. The last 3 inches or so are turning yellowish. What does it need?
Certified GKH Gardening Expert
This is typically caused by overwatering. Make sure to let the soil dry out in between waterings. If it was accidentally overwatered in the past, I would check the roots to make sure that there is no root rot.