Cool

Thank you, mmcavall. What a luxury -- a Pachy in the yard! Wow! Here we have much too cold winters, expecially cold plus wet. I can only dream of your yard. :-) Haha Nothing special. Just a few Aloes and these Pachys. Some cacti of course but they are not very well to tell you the truth. Some pictu...

Nice plants! This Mammillaria...very cool

Pick one of them and give it a good soak and some shade. See what happens. So you will know what to do with the others. (I never saw a columnar cacti become soft due to drought , but I 'm not familiar to this species). I would recomend you to try plastic pots. There are some threads about plastic x ...

Hi nachtkrabb
My P. lamerei is planted in my frontyard under full sun. I never noticed any sunburn problem. I'll take a look in search of sunburns and come back here.

New acquired cacti must have the roots cleaned from the substrate because the mix they use to produce cacti is not good for them in reality. Cacti end up dying in this mix. It is advisable to throw it away and made yourself a new one. When you do it, it is a good opportunity to see the roots and was...

N.magnificus is indeed a possibility

I would guess Echinopsis or Trichocereus (if the spines are hard) for the first one.

thats really weird
if it is a ferocactus it is completely modified by lack of light..I would never "see" a Ferocactus there!

Indeed.
It is amazing to see how many ribs it has to add to reach full size. Smaller species have a higher number of ribs since they are young. The bigger the species, the number of ribs will be smaller when young (right? thats something my little platyacanthus made me think, not sure it is correct).

Agreed. Quite Blue this one!

Thanks Lucy and Keith. I'll search for these names and read their description to see if it matches.
I'll stop this thread with multiple plants...it does not work fine because is dificult to refer to a given plant. I'll separate those that are yet to be identified in different threads. Sorry for that!

Anyone? They are big flowered Mammillarias...it should be easy thanks! I'd say this is rather M. rubrograndis. Mammillaria deherdtiana has numerous (33 - 36) fine, curved towards the body radial spines, centrals are not always present. All in the plant says M. zeilmanniana. Except (as far as I noti...

Anyone?
They are big flowered Mammillarias...it should be easy
thanks!

I water my Mammillarias heyderii (for example) pretty well during the growing season (once or twice a week)... nevertheless they are always flat and compact.... Substrate with high organic matter and shaded spots probably do the opposite to the plant...not necessarily watering regime. I agree on the...