My latest exciting purchase. ID(s)?

I bought this beast online last week, seed grown, 20 years old. All I know is that they were mixed seeds, and they have never flowered. On facebook someone has said the big one is probably pachycereus pringlei. Would anyone have any idea about any of them? I don't even know where to start, all I know is i'll have to repot it all sometime which scares me.

Thanks!

Ooooh very interesting..... I wouldn't even know where to begin with these ones. Can't wait to see what the other members have to say.

Going on the first pic I reckon the big one at 12oclock is Pachycereus pringlei, same pic at 7oclock looks to be a Carnegia gigantea and the one at 2oclock maybe same. Not sure about the others.

Ooh thats exciting! I'm hopeless with big cacti IDs but I did wonder if I had a gigantea in there. Thanks! I may be learning! I believe they were grown from a packet of Yates seeds in the early 90s, but we don't have any big brand cacti seed suppliers anymore, and these are only a couple of years younger than me so no chance of remembering what they did sell! Can't find any info online either. Still probably my best online purchase though!

What a fantastic buy ! Some very interesting columnnars in there. I would separate them and grow them out separately, they all have large genetics and will grow to an amazing size if given enough root space.

HN

I was planning to invest in some good leather gloves and repot them in a few months. I got stabbed by the big one and it hurt for ages haha. Not bad for $12.50, the only thing I don't like is that I probably won't live to see them all flower! It's amazing to me that after 20 years they're still only babies!

They are small because they are in a small pot, much the same as 'bonsi' trees, the smaller the pot the smaller the plant. Most columnar cacti will flower in 3-4 years when grown in the correct environment. Plant them in the ground and watch them grow.

I figured it may have stunted them quite a bit but I have also been told that the pringlei is about right? Might have to get some big pots and divide them. There's a couple of small ones that I'm scared I might lose, they're kinda squished against the sides of the pot. We've had a decent frost every morning this week so unfortunately I can't put them in the ground outside. I've put buy a bigger house with room for a big greenhouse on my life wishlist. I'm excited that I may get to see them flower with some TLC though! Thanks for making me feel better about my purchase!