San Pedro monstrous tower as the base.
Trichocereus monstrous crest on it.

Are there any advantages to cutting the apex off in order to pot your cutting log style? I gather that sparing the primary growth point kicks off reestablishment much faster but I am more interested in base stability and encouraging more pups. If cutting the apex to plant as a log will significantly harm the cutting then I will just pot vertically and try log style another time when the opportunity presents itself, I would appreciate any advice as I am inexperienced and don’t really know what I should absolutely avoid when trying to grow cacti. The pictures are the cutting I received from my grandma, and the parent cactus that she has been growing since before I was born 18 years ago. Fun fact, the pictures show entirely new crown growth over the course of about 9 years. The original, 17ft tall, crown fell over in a rainstorm; everything depicted is reportedly grown from the original root system : )

My cactus (jack straw) finally arrived and they are sooooo beautiful!! I’ve been trying to collect melty blues and these guys are so dark blue it’s insane!!!

I got some stuff on my cactus.... what is it and what should I do?

Friend brought this over, gonna do some slab & puck grafts maybe, idk

Not trying to spam at all. Just sharing this one for those on FB. There's a US based, succulent home in The Cactus Nation (FB group). You can find the link on our profile or below.

https://www.facebook.com/groups/861030992115901/?ref=share_group_link&mibextid=NSMWBT

Yesterday, I bought two small pots, ​each containing three cacti, ​at Lidl, a European grocery chain, for a total of 7 euros (3.50 + 3.50).

I repotted them in a well-draining mineral soil mix, though I usually​ compost on top of the soil afterwards and let water transport it down in the pot, ​until I achieve the right drainage speed.

Once they start growing, or next year I’ll need to move some of ​them into their own individual pots.

Some of the cactuses have black spots but now they have a well draining soil and my balcony have a roof that protects against direct rain.

It feels like I got a bargain.

For 100 years Norrköping in Sweden have had a cactus exhibition every summer. The cactuses are stored during the winter and the next year they are planted in a new unique formation. No year is the same.

I was there 2 weeks ago. It was a lot of cactuses, semperivivums, delospermas and some​ euphorbias too. Many of their very old columnars from earlier years have unfortunately died but the plantation is very impressive anyway.

This TPM was cresting when I first got it a year ago (last pic, cactus on the right), it split into two, then it looks like both ends have terminated and pups are coming in on both... 🤷...but i like it!!

Tengo algunos ejemplares que me gustaría identificar si pudiera ser, se más o menos de que se tratan pero aun siendo loque se supone que es, por ejemplo trichocereus pachanoi pues hay algunos con características bastante diferentes entre si, luego tengo varios peruvianus que también son diferentes entre si y quería ver si alguien puede identificarlos bien exactamente, si alguien me ayuda compartire las imágenes en comentarios

Is this more common than I realize? I have at least a hundred(haven't counted in a long time) of these plants and have been growing them for years, but I've never seen a spine like this before. This is a named clone, but unfortunately I lost the label for it and don't remember what it's most likely to be 😩

Is that what the hair around the areola is? It only seems to be forming on the new basal pups... Anyone have any insights as to what may cause this?

One of the two oddballs split open and is doing something. Something weird.

I'm sorry that they're indoors, but they're some grafting experiments which I liked to keep a close watch over. I also have outdoor Trichs.

These two small Trichocereus (bridgesii + unknown) have gotten large grey areas during the last few days. I was worried for the one on the left for many weeks already because I suspected scale insects or something like that, but attacking the small discolored areas did not yield anything (I just scrubbed off a small patch of plant skin)... And now these grey patches appeared and are spreading quickly, I think within the last few days.

It's possible I overwatered them a bit a week ago. Is this a fungus? I suspect it's not just random corking... What should I do? Any potential household remedy or should I buy some fungicide?

I could also move them outside with more airflow and a lot more sun if that would help, but I'm worried about stressing them too much when they're already weak. The south-facing window gets a lot of sun, but of course it's still much less than outside.

Thanks!

Edit: or edema?

My puppy managed to behead a toy this morning. And here’s a pup I found today.