San Pedro (Echinopsis pachanoi)


A.k.a. Trichocereus pachanoi. The San Pedro cactus (Echinopsis pachanoi) originates from Peru and Ecuador. This cactus contains the psychoactive compound mescaline and plays a very important part in Latin American shamanic culture. We sell cuttings in different sizes that will effortlessly resume their growth once they are put back in the ground.

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Size:Small (10-11 cm) £7.17
  • Size: Large (50-60 cm) £37.97
  • Size: Medium (25-30 cm) £21.09
  • Size: Small (10-11 cm) £7.17
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Size: Small (10-11 cm) £7.17 Out of stock
Size: Medium (25-30 cm) £21.09 Out of stock
Size: Large (50-60 cm) £37.97 Out of stock
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San Pedro (Echinopsis pachanoi): Previously known as 'Trichocereus pachanoi'

The San Pedro cactus (Echinopsis pachanoi) originates in the mountains of Peru and Ecuador where this mescaline cactus grows at an altitude of 2000-3000 meter. Nowadays this cactus can be found in other parts of the Andes, such as the Argentinean and Bolivian mountains. The San Pedro is a rapidly growing cactus: under the right circumstances, this cactus can grow up to 30 to 40 cm a year.

The San Pedro cactus has a extensive history in shamanic culture. The most ancient signs of ritual use date back to 2000 years ago. Since the beginning of civilization in the Andes region, local shamans were using the San Pedro as part of their rituals, hailing the cactus as the “Materia Prima’. It was used not only as a religious sacrament, but also as a shamanic medicine.

Unlike the Peyote cactus and the psilocybin mushrooms, the use of the San Pedro cactus was not punished by the catholic inquisition. It is also very surprising that this holy Indian plant bears the name of a catholic saint. How this came to be is unknown till this day.


The San Pedro contains mescaline, a psychoactive alkaloid with potent psychedelic and hallucinative effects. Users of mescaline attest to strong visual effects, an altered conscious, feelings of euphoria and intense harmony with nature. The normal dosage of mescaline is 0.3-0.4 gram (pure mescaline, not 0.3-0.4 grams of cactus). The consumption of mescaline cacti can induce heavy vomiting. According to original users this purging should be experienced as a positive, it is the cleansing of the body.

For the fanatics: the chemical formula for mescaline is 3,4,5-trimethoxyphenethylamine.

How To Dose Mescaline Cacti Properly

Cultivating the San Pedro cactus

Our cuttings of the San Pedro are exclusively derived from healthy and attractive cacti. These cuttings facilitate the home cultivation of your own San Pedro cactus. The cutting only needs to be placed in the ground after which the cutting will soon shoot roots and continue to grow, like it had never been out of the ground in the first place. Use special cactus soil and not the standard soil for indoor plants. This soil often contains an incorrect ratio of nutrients needed for cacti.

Water the cactus once a week in autumn and spring and only once every 2-3 weeks in winter. In summer you may water the cactus 3-5 times a week. The best method is to water the cactus from the bottom, so it is better to put the cactus in a pot with a punctured base. Place the pot in a shallow dish with water en the cactus will absorb what it needs. This method is preferred over watering the cactus with a spout from above.

Place the San Pedro cutting in the shade for the first month, allowing the cactus to adjust to its new surroundings and create a new root system. You will not need to water the cutting for the first 2-3 weeks.

Name change: From Trichocereus to Echinopsis

The Latin name for the San Pedro cactus has always been 'Trichocereus pachanoi', but recently a new classification for the cactus species was put in place. Now the San Pedro is subordinate to the much larger cacti family Echinopsis. The current and correct name for the San Pedro is therefore ‘Echinopsis pachanoi'. The name change has not yet caught on with the masses and the cactus is still commonly referred to as 'Trichocereus pachanoi'. It will probably take quite some time before people speak of the 'Echinopsis pachanoi'.

San Pedro (Echinopsis pachanoi) data sheet
Cactus San Pedro

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Reviews (134)

    great quality
    good product, arrived well and fast. 100% recommended


    Très bonne sensation en thé. Très relaxant et produit de qualité. Emballage bien réalisé pour le transport. Parfait, je recommande


    San pedro 25-30 cm
    Das war eine der besten Erfahrungen die ich bis jetzt hatte . Ich habe das erste mal san pedro konsumiert und es war einfach wunderschön, meskalin wird sehr sehr unterschätzt und es sollten mehrere leute die Erfahrung machen. 10/5 sternen . Die Lieferung war auch schnell da wie von zamnesia gewohnt. Danke euch Team Zamnesia.


    In love
    Hatte das Glück einen der Großen ergattern zu können, er hatte 57 cm. Habe ihn geteilt und das obere Ende zum Wurzeln in Vogelsand gesteckt. Ich empfand den Trip als traumhaft, der beste den ich jemals hatte. Mag seitdem keine Pilze u.o chemisches LSD mehr, super smooth was im San Pedro steckt. Das beste daran: kein bisschen Kater am Tag danach, als ob nichts gewesen wäre... :)


    Nice and healthy
    I bought 4 in total and they all arrived healthy and have rooted and grown since then. The sizes vary a lot. One 25-30cm cutting was around 400 grams and another 25-30cm over a kilo.


    Eigentlich ein echt schöner San Pedro nur leider hat der Stecklingen durch denn Transport bei mir einer drück Stelle bekommen die bei mir jetzt leicht Anfängt schwarz zu werden aber beiden andern Stecklingen die ich mir bestellt habe ist zum Glück alles gut


    San Pedro cutting
    Arrived in good time in excellent condition.


    Both arrived in a short time and were soon rooted. Now they are growing and looking good! Happy!


    Robust San pedro
    Yes, I liked how big it was. Unexpected for me, yet I won't eat it by now. I just planted it and see how it goes, atm it has 3 weeks but I'm noob and I don't know how to see if it already rooted but I'm kinda sure it did. Its my first ever cactus and lol, it's a psychoactive one haha. Thank you Zamnesia. Always on TOP!


    Anybody should try it in his life. Came safely wrapped round. 54cm above 1kg. Good 2 portions from whole Large cacti. If u are not sure. Buy until is available!

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San Pedro (Echinopsis pachanoi)
San Pedro (Echinopsis pachanoi)
San Pedro (Echinopsis pachanoi)
San Pedro (Echinopsis pachanoi)
San Pedro (Echinopsis pachanoi)
San Pedro (Echinopsis pachanoi)