San Pedro/ Huachuma Divine Grandfather Medicine

The Medicine

San Pedro, scientifically known as Echinopsis pachanoi, is a columnar cactus native to the Andes Mountains in South America. It has a long history of traditional use in healing and shamanism, primarily among indigenous peoples in the Andean region, especially in Peru and Ecuador. San Pedro is also often referred to by its native Quechua name, Huachuma. Although San Pedro is considered to be a divine masculine medicine, specifically representing the energy of the grandfather, Huachuma is considered to be the feminine aspect of the plant.

This medicine has a beautiful and grounded energy that enables entering an expanded state of consciousness while remaining embodied and present. This can be useful for working with trauma in a gentle but powerful way, and can deepen somatic practices, allowing for processing and resolution of trauma stuck in the body. This medicine is also generally recognized as a heart opener. It can help to clear blocks in this area and facilitate reconnection to the truest aspect of the soul through the space of the heart.

The primary psychoactive compound in San Pedro is mescaline. Mescaline induces altered states of consciousness, leading to vivid visual and sensory experiences, including greater awareness of sensations and energies in the body.


The Experience

The timeline for the San Pedro experience is a bit longer than some other commonly used plant medicines, with the entire experience often lasting 8-12 hours. As with other medicines, this can be affected by a number of factors. This is typically a more grounded medicine than many other psychoactive plant medicines, making it ideal to pair with deep somatic work. However, many commonly experienced effects are similar to other medicines and include the following:

  • Visual hallucinations

  • Enhanced sensory perception

  • Altered states of consciousness

  • A deep sense of introspection and spiritual connection

  • Heaviness in the body, nausea, and an increased awareness of physical sensations

Our Retreats

Participants pouring ceremonial water offering during a summer solstice plant medicine retreat

7-Day Summer Solstice Retreat

June 18-24, 2026 - Lakeport, CA

Participants pouring ceremonial water offering during a summer solstice plant medicine retreat

7-Day Summer Solstice Retreat

June 18-24, 2026 - Lakeport, CA

Desert landscape with saguaro cactus under blue sky at Bufo immersion retreat in Arizona

Bufo Immersion Retreat

July 30-August 4, 2026 - Blisstopia Retreat Center, Peoria, AZ

Two women in somatic ceremony during a fall equinox plant medicine retreat

7-Day Fall Equinox Retreat

September 17-23, 2026 - Mendocino County, CA

Hands cradling a red rose representing winter solstice sacred ceremony

7-Day Winter Solstice Retreat

December 17-23, 2026 - Mendocino County, CA

Hands cradling a red rose representing winter solstice sacred ceremony

7-Day Winter Solstice Retreat

December 17-23, 2026 - Mendocino County, CA