The A Strain (A+) A+ Strain (AKA the A-strain) is a popular Psilocybe cubensis mushroom favored for its above-average potency.

The A+ Strain is relatively easy to grow and can produce good yields when grown in favorable conditions. However, producing multiple healthy flushes can prove difficult due to issues with contamination. 

A+ was initially developed by “Mr. G” — an infamous mushroom breeder and Shroomery contributor. 

The A+ Strain has several notable characteristics but is a pretty average-looking Psilocybe cubensis mushroom. The fruiting bodies are medium to large-sized with slim white stems and rounded golden caps that often develop warts throughout maturity. This gives them a particularly “mystical” look similar to Amanita muscaria but without the intense red and white coloration.

When consumed, the A+ Strain produces excellent visuals and a strong feeling of euphoria. It’s also a reliable choice for people looking to microdose psilocybin-containing mushrooms. 

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