Ask a Question forum→My cactus looks like she is dying

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Dec 30, 2020 3:16 PM CST
My cactus has done so well for so long but all the sudden turned brown? I don't know if it's from under watering or over watering ?
Thumb of 2020-12-30/Jaidepoulsen/a41451

Lockhart, Texas (Zone 8b)
Hydroponics Greenhouse Region: Texas
Dec 30, 2020 3:36 PM CST
Because I doubt you neglect it, I'd guess the trouble was over-watering and subsequent root rot. You will know how likely that is, as opposed to underwater. It can be hard to tell the difference from appearance. Root rot is a fungus that takes advantage of drowned roots.

It appears to be rather far gone. But cacti can be tough, and there's some green. I'll tell what I'd try if it were mine. I would take it out of the pot and clean off the roots. While it's out, identify any parts that are mushy, and cut them away. With roots, trim away any that are brown.

At that point, it's rather like rooting a cactus cutting, and you might literally be doing that before you're done. Leave the remaining part out to dry and form calluses over the cuts. Then repot it in a well draining potting mix. It's appropriate to add additional perlite for aeration and sand to approximate a cactus mix. Of use a cactus mix with extra perlite. Keep it out of the sun. You can water it, but judiciously only when the mix feels dry when you stick your finger down into it.

If it's mushy top to bottom, and the roots are all brown, it's likely had it.
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Dec 30, 2020 4:23 PM CST
Its dead. Toss it in the garbage. When it was alive, it was a Fairy Castle Cactus (Acanthocereus Tetragonus). Sorry!
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada

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