My barrel cactus is turning yellow about 1" at the base. It is about 3" tall about a few years old. It is in a pot with another one that is slightly taller and there are many babies around both cactus. If I cut off the yellowing part at the base, I won't have much of a plant left! Can I root what is left? They are in a 6" clay pot. Should I take out the cactus with yellow. It is hard to see in the photo
Barrel Cactus Turning Yellow
Certified GKH Gardening Expert
Check the soil. This can be due to overwatering.
The soil should be of a sandy type and dry well in-between waterings.
Over watering or the soil staying soggy can result in the cactus developing root rot.
Check the soil, don't rely on a watering schedule.
Here is a link to refresh you on the care.