I.D. on behalf of

[Optimystic]

Someone I got several cacti from asked me about this plant in the photos... any thoughts about what this might be?
What threw me off is that its said to be all one plant.. I had 2 different guesses lol not looking for a debate but rather some good opinions to pass on to her

Also I got one of these from her... wondering if anyone thinks a PC can look like this, if it must be something else or if possibly a hybrid... they are about 4 inches thick or so and mines about a meter, and they grow somwhere out in cali.. I told here maybe a bit too much sun.. mine has been in shade and is starting to turn to a light green but still looks burned... but this pic is one of hers which shows the spines better than the pics of the one I got here

Also wondering if anyone has rooted any big ass cuttings like that... like how deep would you bury it? I'll figure that out for sure but any advice would be appreciated as the one I have here is little over a meter long

Cheers

[CβL]

First one looks mostly Pachanoi (the way it sort of seems to have stopped producing spines it seems is a very common trait on Pachanoi, as well as the colour and shape of the plant and spines). The second one could very well be PC - the spines could be extra gnarly and it extra fat because it was grown in full-sun (explaining the pale color).

I rooted a cutting that was a little over a metre long, and it's barely grown at all. I think it's literally spent almost 2 years now just growing roots. The pot is about 50L I think. Perhaps I put in a lot of blood and bone (lots of phosphorus) which sort of forced it to grow roots until it had lowered the phosphorus levels. I planted it about half a foot below the soil, and staked it in with a bamboo rod. I would recommend a fairly small pot, as I can tell my cutting didn't enjoy swimming in a super huge pot for ages (it couldn't control the moisture of the soil until it had much bigger roots). It didn't die, but sitting in moist soil didn't speed things along either. I've seen 1.6m plants that were rooted in 3-5L pots (I have a photo somewhere perhaps).

[solaritea]

The second one looks PC to me, an old plant from a (too) sunny location.

The first one, she should send half to you and half to me and we'll let her know once we grow it for a little while.

[Savage Gardener]

That crest!!

[Savage Gardener]

I rooted a cereus cutting that was about 1.2 Metres...

Let it dry for 3-4 weeks then potted it up in a mix of sandy soil approximately half a foot deep and it's shown good signs of growth.

The pot wasn't much bigger than twice the width of the cutting and approx 1 foot deep.

It flowered too after about 2 months, 13 beautiful flowers.

[Optimystic]

hrm I thought I replied here already..

anyhow thanks everyone... I'll try that out but Im not sure I'll be able to balance in a little pot so I may either cut or just plant in the ground but its humbling to know that such a large cutting can work in a pot ... and not only that but to possibly flower too... the plant has greened up a little more since I made this post and appears to be popping out a new tip...

@ Solaritea - not a bad idea either lol

[zelly]

IMO first one looks bridgesoid and the second one is most def a sun baked, nutrient deficient pc pach. Keep in mind pc pach and all other forms of trichs do perfectly fine in full sun when provided adequate nutrients. A pc pach that size in diameter? You betcha.

[Bert&Ernie]

Bridgesii, Pach/Puru, Pach

[coolname]

im not too sure what they are, but when you are rooting any cactus cuttings generally its best to plant them as shallow as possible to help prevent them rotting. i would recommend planting them around half a foot deep or even less if you can get away with it and using 2 or more stakes with some hessian or something like that tied between the stakes and wrapped around the cactus to support it for atleast a couple of months or until it grows enough roots to hold its self up.

good luck

[tipz]

I planted this guy a week or two ago, it was a hefty 2.6 metres of macro.

I know it's not the optimum time but I wanted her in. Ill probably leave it tied like this until well into the next growing season. She is about a foot deep into the ground.

Edited May 12, 2013 by cacti jihadist

[M S Smith]

Bridgesii, Pach/Puru, Pach

I'm with jwerta on this one. Looks like three different plants. The first being T. bridgesii, the second somewhere on T. pachanoi/T. peruvianus spectrum, and the last more like your average T. pachanoi.

The yellow plant is clearly the T. pachanoi "PC", aka T. "pachanot."

~Michael~

[cactuscarl]

I agree. There are three plants the first is definitely bridgessi second one looks very similar to one of mine which is an unusual pachanoi and the third is pachanoi as well.

You should have no trouble rooting that I reckon they root much easier as large plants there. I put a 1m cutting in at the end of last winter and its grown 2 feet and has two pups over a foot long now.