Night Blooming Cereus
Q.

Cereus tetragonus is turning white

Zone Guelph, ON | Anonymous added on November 21, 2017 | Answered

Hello, I've had this cactus for about 3 1/2 years now, he's gotten quite large and has a few little sprouts coming up in the soil as well. Recently one of the larger prongs has started turning white and going soft from the bottom up and the four little sprouts have wilted and fallen over. I've never had a problem with this cactus before and my family and I love it and are fearful we might be losing it, does anyone know how to save the rest of it?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on November 21, 2017

Does the white area feel soft or mushy, which would indicate rot? Also check the sprouts that have fallen over to see if they are mushy.
https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/cactus-going-soft.htm

Removing the plant from its pot and checking to see whether the roots are mushy is probably necessary. You will also need to cut out any mushy aboveground parts of the plant as described in the article. If the roots are are mushy or overly moist, you can let them dry out overlight, then repot the cactus in clean soil and be careful not to overwater, since it will probably use less water while recovering.

If any of the small sprouts still seem healthy, you can use them to take a cutting:
https://www.gardeningknowhow.com/ornamental/cacti-succulents/scgen/propagating-cacti-and-succulents.htm

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Night Blooming Cereus
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More