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Posted 1w ago by @Orchidsparadise

What happened to my moon cactus? Appears to be rotting ba...

I just got it two weeks ago and it’s in a sunny area in the house next to another cactus that’s been in that spot for a long time, which seems to be doing well. I did transfer it out of the nursery pot being the roots were coming out of it. Have I killed it? #MoonCactus
2ft to light, direct
4” pot with drainage
Last watered 2 days ago
I don’t know much about moon cacti but within my experience with other cacti, certain nurseries or stores will sell the ones that are currently in bloom and many people think they’re dead once they stop flowering; however it’s just their natural cycle. Don’t know if that’s the case with Apollo, but just a guess.
Unfortunately, the top part is dead, but if the green base is firm, it’ll live and keep growing on its own (it’s probably a dragon fruit cactus).

What you’ll need to do is slice the top off with a clean knife, cutting slightly into the green to ensure all the rot is gone. If you leave any mushy spots, the rot will spread.

It likely got too much moisture when repotted, so make sure the pot drains well and let the soil dry out completely.