Are Mushroom Spores Legal in Washington?
Microscopy & research spore legality, reviewed June 2026
Yes. In Washington, mushroom spores are legal to buy and possess for microscopy, research, and educational use, because the spores themselves contain no psilocybin. Germinating or cultivating Psilocybe spores is illegal, since that produces a controlled substance.
Shop research-grade spore syringes & prints →Mushroom spore law FAQ for Washington
Can I legally buy mushroom spores in Washington?
Yes. Mushroom spores can be legally bought and possessed in Washington for microscopy, taxonomy, and research, because spores contain no psilocybin.
Is it legal to grow mushrooms from the spores in Washington?
Germinating Psilocybe spores is illegal in Washington because it produces psilocybin, a controlled substance. Gourmet and medicinal species are legal to cultivate.
Do I need a license to own mushroom spores in Washington?
No license is required to possess mushroom spores for microscopy and research in Washington.
Why are mushroom spores legal when mushrooms are not?
Psilocybin and psilocin (the controlled substances) are produced by the living mushroom. The spores themselves contain neither, which is why spores are sold for microscopy and research in most states.
This page is general information for microscopy, research, and educational purposes, not legal advice. Spore laws can change; confirm the current law in your jurisdiction before purchasing. SporeStore.com sells spores for microscopy, taxonomy, and research use only.