Exploring the PESA Strain: An Amazonian Strain of P. Cubensis

The PESA Strain: An Amazonian Strain of P. Cubensis

The PESA strain might be disappointing in potency but makes up for it somewhat with its remarkably large mushrooms. It’s also very quick to colonize and produce fruit. Many people get confused about what exactly the PESA strain is. Some say this strain is a copy of the more famous B+ strain; others claim it’s a hybrid between Psilocybe cubensis and Psilocybe azurescens.

PESA Strain Specs

Potency: Weak 🐁

Cultivation: Easy

Species: Psilocybe cubensis

Substrate Recommendation: Rye Grain, Coco Coir & Vermiculite, BRF Cakes, & Bird Seed

Sold By: Spores 101 (🇺🇸/🇨🇦), Miracle Farms (🇺🇸/🇨🇦), Sporeslab (🇨🇦), The Magic Mushrooms Shop (🇪🇺)

History of the PESA Strain

PESA was initially sold by the Pacifica Exotica Spora vendor. Some believe the PESA strain is identical to the more well-known “Amazon cubensis” or “Amazon strain” mushroom — but there’s some debate about this. Both strains produce similar, large mushrooms, but PESA tends to form denser clusters and have darker caps than the classic Amazon strain.

Potency & Psilocybin Content

PESA has below-average potency, with an average psilocybin and psilocin levels of just 0.43%. Growing conditions, substrate, and environmental factors can impact potency. The classic Amazon strain is much stronger, with an average total tryptamine levels closer to 1.4%.

Where to Buy PESA Strain Spores

PESA spores can be found from various trustworthy vendors. If you can’t find PESA, try searching for Amazonia, Amazon, PES Amazonian, or Amazon Cubensis. Recommended vendors include Spores 101, MYYCO, Miracle Farms, and The Magic Mushrooms Shop.

How to Grow PESA Shrooms

Cultivating PESA mushrooms is relatively easy. Use substrates like Rye Grain, Coco Coir & Vermiculite, BRF Cakes, or Bird Seed. Follow proper sterilization and incubation techniques for successful growth.

Other Large Magic Mushroom Strains

Aside from PESA, other notable strains include Syzygy (SYZ), Orissa India (OI), Brazilian (BRZ), Creepers (CREEP), and South American (SA). Each strain has unique characteristics and cultivation requirements.

Strains vs. Species: What’s the Difference?

Understanding the distinction between mushroom strains and species is crucial for hobbyists and researchers. Strains refer to genetic variations within a species, while species indicate distinct biological entities with specific traits and characteristics.


The PESA strain offers a unique experience with its large mushrooms and rapid growth. While its potency may be lower than other strains, its distinctive characteristics make it a popular choice among enthusiasts. By exploring the history, cultivation methods, and where to buy spores, individuals can embark on their journey with the PESA strain.

For a memorable psychedelic experience, consider exploring the PESA strain and its fascinating attributes. Whether you’re a novice grower or an experienced cultivator, the PESA strain presents an exciting opportunity to engage with the world of magic mushrooms.

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