Do these look like t peruvians? I read somewhere that peruvians have yellow or brown spines, they have both. yellow spines if they are young. These ones are definetly young and there very blue also which i think is a good sign. Plus also you can tell they have a a very smooth transistion between ribs. I almost positive these are peruvians. How do i get them to grow big. I know i'll need a bigger pot probably.
It is really hard to say. On one hand, I'd say it looks just like t. peruvianus. However, there are also a lot of other trichocereus that look like that. Check out all the cacti on this page: http://erowid.org/plants/cacti/cacti_images.shtml
T. Peruvianus appears to be fairly rare. Ive ordered them from websites who promptly send me san pedro. Like Im an idiot. What you have looks like peruvian torch but likely is not. If it is PT, then right now at my neighborhood lowes department store there is a 2 foot high 4 inch wide version of exactly what you have. Calls itself a Terrazo cactus, but this is apparently a general name like "succulent". Lowes also sells san pedro, though, so ya never know...
