Ask a Question forum→Overwatering or less light on my cactus ?

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pallavi
May 4, 2018 7:16 PM CST
Hi all,

I just got this funky looking cactus as a gift and put it on my entryway table that's the south facing . I watered it just once or twice in a month since it came but it has started getting discoloured at places. What did I do wrong ? Can I still save it ?
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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
May 4, 2018 9:40 PM CST
Your plant is Mammillaria elongata cristata. They are incredibly hard to take care of without full sun and very little water.
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

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Name: Yardenman
Maryland (Zone 7a)
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Yardenman
May 4, 2018 10:58 PM CST
pallavi said:Hi all,

I just got this funky looking cactus as a gift and put it on my entryway table that's the south facing . I watered it just once or twice in a month since it came but it has started getting discoloured at places. What did I do wrong ? Can I still save it ?
Thumb of 2018-05-05/pallavi/752275


Thumb of 2018-05-05/pallavi/4312a7


Thumb of 2018-05-05/pallavi/ac1d89



When I was younger and more adventurous, I grew cactus on my deck. I didn't really get enough sunlight for them, but I set up reflectors of aluminum foil in plywood sheets to increase it as much as possible. And I used really sandy soil in the pots that drained well. I got a few of them to even bloom, so I must have been doing something right. I never watered them. And I had to give them serious light in Fall to Spring. But I gave it up after a while. They just weren't suited to MD. But it is proof that it IS possible for them to thrive where they don't naturally grow.

[Last edited by Yardenman - May 4, 2018 10:59 PM (+)]
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Name: Sue Taylor
Northumberland, UK
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kniphofia
May 4, 2018 11:25 PM CST
No plant will survive with no water. Cacti need to be well watered, thoroughly and then left to almost dry out. Little and often is not for them. Also they need strong sunlight near to a window if grown indoors. What kind of potting compost is it in? Does the container have drainage holes? If not I would take it out of there and repot into some very free draining compost, you can pick up cactus compost or use some houseplant compost and add grit to it.
Name: Philip Becker
Fresno California (Zone 8a)
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Philipwonel
May 5, 2018 7:45 AM CST
Repot, terracotta pot, one, or two, inches larger than cati, with drain hole.
Use barely dampened, well draining soil.
Wait a week, or more, to water.
It's winter, right ? During cool, damp weather she will go 6 or more weeks before needing water.
Water when soil dries out completely.
She'll need as much light as possible, outside, best, if not to cold.

Right now. Take her out of pot, so her roots can dry out. check for any root rot and remove. Set her, bare naked, in sunniest window you have to dry for at least a week, two would be better.
If any of top is squishy soft, those places will need to be cut away to healthy growth, clean flesh.

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