BennieAnTheJets wrote: ↑Mon Jan 20, 2020 2:55 am What is the blooming one in IMG_1337-768x1024.jpg (107.72 KiB)?

Thanks for your comments!
The blooming plant is mammillaria spinosissimma 'un pico' which happens to be almost spineless

That's stenocereus thurberii. It looks like there's another different stenocereus in the far back

theclosetguy wrote: ↑Sat Jan 18, 2020 2:15 pm Yes Elie it is a backebergiana. Just showing as an example of how these similar species can grow over time. I realized after posting that its at least 15 yrs old. This was taken in July 2019.

It's an amazing plant!

theclosetguy wrote: ↑Fri Jan 17, 2020 12:31 pm 10 plus years old
IMG_20190527_121020-001.jpg
IMG_20190527_120924-001.jpg

Yours kinda looks like M. backerbegiana Mike. Closer photos should confirm

Great greenhouse and a fantastic collection! Show some of your great looking Mamms one of these days. Thanks Tim! Here are some mammillarias from the staging area. This bench is mostly mammillaria elongata variations, Leucocephalae and polyacanthae. Having to resize is drastically affecting colors ...

2. One of the many forms of mammillaria spinosissima, most likely pilcayensis

Thank you everyone for these kind comments! Hahaha...how do you plan to do that? Holding that cactus for repoting is a problem by it self...hahaha I use a thick piece of foam and lay the cactus on it. It makes handling so much easier. Sometimes i use this method described by wayne: http://www.cactig...

Some better photos from a different camera

theclosetguy wrote: ↑Tue Jan 14, 2020 12:41 pm Wow!
Nice size and a nice collection

Thank you mike!

Wow...i can see Fero gracilis there Is it subs coloratus ? And how old is that biggest Echino grusonii? the uglier hoophouse/pe film doesn't need a permit. I built this rudimentary greenhouse with a couple of buddies in one afternoon in a effort to finish before a big storm Does it proves to be sto...

My greenhouse is still a work in progress and it's not what i want it to be. It's currently 9x4.5m. I wanted to build a polycarbonate greenhouse but governmental bureacracy says i need a very complicated permit. Incidentally, the uglier hoophouse/pe film doesn't need a permit. I built this rudimenta...

These are impressive, Elie. ...as are some of the other cacti in the background. Is this your greenhouse? Thank you! Yes this is my greenhouse and the plants in the back are some cereus cultivars. I will be posting about my greenhouse in a different topic. Hi Elie, this does look good and comfortab...

1. stenocereus griseus
2. An etiolated echinopsis, possibly oxygona
3. Monstrose cereus
4. Notocactus agnetae
5. Monstrose opuntia

Ariocarpus has been very easy from seeds for me. What will be considered intermediate are species needing seed aging or chipping or stratification or species that are very slow growers

I really like the look of clay pots but plants never really thrived for me in them for the reasons you stated. If you insist on using clay pots, you can see them with whatever is available to you. My favorite is to use the inside and outside with surfboard wax and bake it for a couple of minutes. Yo...