It looks wilted so I would try watering it thoroughly. If that doesn't help I wonder if its too cold against the windows or its reacting to its time outside. It is a beautiful plant!

how cold was it outside when you hoiked around the neighborhood bringing it home ... and how did you protect it from said cold ... if any?

did you moisten your media mix before use .. or was it bone dry??

how did you come up with that mix ratio?

why did you immediately repot a plant that was stressed from moving around town ...

i would kill for a plant room like that ...

get rid of the wire and use something like a used panty hose to tie it upright ... something that wont cut into the tissue of the plant ...

ken

If I am not mistaken, the scientific name of this plant is Euphorbia trigona 'Rubra'. Euphorbias are not cacti, but a separate genus of aprox. 2000 species, with abt. half of them being succulents. They exude white, milky sap if broken-injured, that some ppl are very allergic to. There are some that are hardy, but not yours. But from what I read, it should survive temps close to 30*F. They are beautiful landscape or houseplants, and yours looks extremely nice/mature. It would be sad for it not to survive.

They take a while to establish, so hope that is the reason for it being 'sad'. I would have probably waited with repotting until it gets acclimated, unless there was a real problem. Was the existing pot really small? Or any other reason you repotted immediately? Best time to repot most plants is at the begining of the growing season. Typically, it is best to wait with watering for a while (5-10 days) after repotting.

They need good drainage. What kind of sand did you use in the mix? Fine sand isn't probably very good to use, but sharp sand (grittier) would be ok. Often sold as horticultural sand. Or use builders sand which is also grittier. Many of us don't use any sand in a mix for succulents, but some do & it is often recomended on various sites...

Thank you all so much for your reply. I know, it’s incredibly stupid that I repotted it after it was already probably stressed from moving. I just wanted to see if the roots were healthy and then I thought o well I might repot it straight away, cause it is a hassle to move it around + there was not much space left for the roots to grow in the old pot.

For the mixture I used the sand that was already in the pot before, so I unfortunately don’t know what kind of sand it is. I just added some perlite and regular soil to give the mixture some more volume (I didn’t have anything else at the moment). The old mix was dry. The soil I added (I guess 1/3 of the total volume) was probably a bit damped. I keep it outside in a wooden storage cabinet. But definitely not wet.

It was around 41 F outside and I kept it there for roughly an hour.

@ Rina. I will read into it:). My plant does give white milky sap which I did got a bit of an allergic reaction to. So, you are most likely right.

HU-227257926

When handling euphorbias, make sure you don't get any sap into your eyes. All euphorbias have it, even weedy ones (I have some growing in the garden). Depending how sensitive one is, it - at worst - could cause severe irritation, even blindness. Best is to wear the gloves. And sap should be washed off if dripping.

To make potting mix well draining, lots of sifted perlite (or pumice) should be added.

Not too heavy on the soil; I usually use only about 20-30% of the total volume. And I add some grit to the mix. Perlite & grit are in approx. same amount, and they are of approx. same size (4-6mm).

I don't have same euphorbia as yours, but here is the photo of the roots of E. decaryii when repotting; little of the mix is visible in the photo: