Help saving this "Corn Cob"

Trouble shoot problems you are having with your cactus.
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NoamS
Posts: 28
Joined: Sat Feb 22, 2020 4:25 pm

Help saving this "Corn Cob"

Post by NoamS »

Hi
Help saving this "Corn Cob" :(
at the base its hard
at the middle soft
its winter here
i didn't water it but the air is humid.
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Jangaudi
Posts: 457
Joined: Sun Aug 04, 2019 2:21 pm
Location: Gent, Belgium

Re: Help saving this "Corn Cob"

Post by Jangaudi »

Surgery looks like all you can do. A lot of meat to choose from but make sure when you cut it's nice and green, without brown spots. Also you've got a lot of small offsets that can be rooted. Don't wait though, rot can go fast ;)
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NoamS
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Joined: Sat Feb 22, 2020 4:25 pm

Re: Help saving this "Corn Cob"

Post by NoamS »

Jangaudi wrote: Tue Jan 05, 2021 11:01 pm Surgery looks like all you can do. A lot of meat to choose from but make sure when you cut it's nice and green, without brown spots. Also you've got a lot of small offsets that can be rooted. Don't wait though, rot can go fast ;)
i tried to cut 1 offset 2 months ago & it got rotten too after a few weeks.
the base may live after i'll cut above it?
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anttisepp
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Joined: Sat Jul 10, 2010 12:00 pm
Location: Suomi - Finland

Re: Help saving this "Corn Cob"

Post by anttisepp »

Cut higher, above the rotten tissue. Surface have to be ideally fresh and sound light green. Apply sulfur powder. Put in empty glass and leave on the windowsill. Check sometimes, it will root within a month usually, then you can plant it and continue to grow as a usual succulent.
Jangaudi
Posts: 457
Joined: Sun Aug 04, 2019 2:21 pm
Location: Gent, Belgium

Re: Help saving this "Corn Cob"

Post by Jangaudi »

And take off all the offsets, just in case the whole plant goes bad. And I don't suppose you could save that base...unless of course you manage to get a fresh cut that low, but I doubt it.
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NoamS
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Joined: Sat Feb 22, 2020 4:25 pm

Re: Help saving this "Corn Cob"

Post by NoamS »

thanks guys
& why put it in empty glass? close the lid or what?
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Steve-0
Posts: 716
Joined: Tue Mar 31, 2020 2:55 pm
Location: Salt Lake Valley, Utah...high mountain desert climate

Re: Help saving this "Corn Cob"

Post by Steve-0 »

Here's a French website on saving a rotting cactus with surgery. I used this on mine and it works well.

https://sclerocactus-aventures.com/hist ... cinertige/
SoilSifter
Posts: 109
Joined: Tue Jul 21, 2015 9:56 pm
Location: se Idaho 5a

Re: Help saving this "Corn Cob"

Post by SoilSifter »

This corn cob cactus is technically not a cactus. It is Euphorbia mammillaris. I've tried growing the variegated form of this a couple times. Unfortunately they seem to be a bit prone to rotting and once it gets in the plant it spreads fast. Don't feel too bad if you can't save it.
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Aiko
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Joined: Mon Jan 24, 2011 5:26 pm
Location: the Netherlands

Re: Help saving this "Corn Cob"

Post by Aiko »

The only thing you can do is cut the still good looking part of and try to reroot that. Cut well above the brown / black parts, so nothing internal that might have spread a bit further up could still be in the section you cut off. Once you have a cutting, just let the wound dry out well for a week or so and I would then put it in a pot with some soil and let it be until spring. By then see if any roots have already appeared, and then you might start to water a bit every now and then. Don't water it before that time. It can only cause rot. Although I don't have much experience rooting an Euphorbia. It will be harder than any cacti, probably.

Be careful when cutting an Euphorbia. Don't get the white sap in your eyes (be careful of splashing drops!), mouth or wounds on your hands.
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