Quick answer: No. Idaho has the strictest spore law in the country. Idaho Code § 37-2705(d) lists “Spores or mycelium capable of producing mushrooms that contain psilocybin or psilocin” in Schedule I, right alongside psilocybin and psilocin themselves. Possessing them is a misdemeanor (up to one year and $1,000); manufacturing, delivering or possessing them with intent to deliver is a felony (up to five years and $15,000).
In Idaho the spores are a controlled substance, so the “spores contain no psilocybin” reasoning that applies in 46 states does not help. No reputable vendor ships Psilocybe spores to Idaho, and neither do we.
Intended use and disclaimer. We sell Psilocybe cubensis spore syringes for microscopy, taxonomy and educational use only, and we do not ship them to Idaho. This page is general information, not legal advice; only a lawyer licensed in Idaho can tell you how the law applies to you.
In this guide
- What Idaho law says
- Why Idaho is the strictest state
- Penalties
- Spores and mycelium
- Any reform in Idaho?
- What it means if you live in Idaho
- Frequently asked questions
- Sources
What Idaho law says
Idaho’s controlled-substance schedules are in Chapter 27 of Title 37 of the Idaho Code. Section 37-2705 is Schedule I, and subsection (d) is the list of hallucinogenic substances. Three entries on that list matter here:
- “(27) Psilocybin;”
- “(28) Psilocyn;”
- “(34) Spores or mycelium capable of producing mushrooms that contain psilocybin or psilocin.”
The third entry is the one that matters. Most states schedule the two chemicals and stop. Idaho added the spores and the mycelium to the same schedule, which means Idaho law treats a spore syringe the way it treats the mushroom.
Section 37-2705 was amended in 2026 (Chapter 90, Laws of 2026), and item numbers in the hallucinogen list have shifted over the years, so cite the language rather than the number.
Why Idaho is the strictest state
Four states have spore laws (California, Florida, Georgia and Idaho), but only Idaho lists the spores themselves as a Schedule I controlled substance. Our 50-state guide compares all four.
Penalties
Section 37-2732 sets the penalties for Schedule I substances that are not narcotics, which is the category psilocybin, psilocin and the listed spores fall into.
- Possession (§ 37-2732(c)): a misdemeanor, punishable by up to one year in jail, a fine of up to $1,000, or both.
- Manufacture, delivery or possession with intent to deliver (§ 37-2732(a)): a felony, punishable by up to five years in prison, a fine of up to $15,000, or both.
“Manufacture” in Idaho, as everywhere, includes propagation, so germinating spores is a felony under the same section that covers delivering them.
Spores and mycelium
Idaho’s entry names “spores or mycelium.” Mycelium is the living fungal material that spores produce when they germinate; it contains the controlled compounds and would be Schedule I in every state on that basis alone. Liquid cultures and so-called “isolated” syringes are mycelium, not spores, and are covered in two ways in Idaho: once as a listed item and once as a material containing psilocybin.
The entry is limited to “mushrooms that contain psilocybin or psilocin,” so spores and cultures of culinary species are not affected.
Any reform in Idaho?
No. No Idaho city or county has passed a psilocybin deprioritization measure, and the Reason Foundation’s 2025 and 2026 state policy roundups, which track every psychedelic bill filed nationally, list nothing from Idaho. The 2026 amendment to § 37-2705 did not remove the spore listing.
What it means if you live in Idaho
- Vendors will not ship Psilocybe spores to you. Every vendor that follows the law refuses Idaho addresses, and so do we. Delivering a Schedule I substance into Idaho is a felony for the sender; possessing it is a misdemeanor for the receiver.
- “For microscopy only” does not apply. That phrase describes the lawful use of an uncontrolled product. In Idaho the product is controlled.
- Culinary species are unaffected. The listing covers only species whose mushrooms contain psilocybin or psilocin.
- Non-spore products ship normally. Our lab supplies and merchandise are not controlled substances.
For neighboring states, see our guides to Oregon, Utah, Nevada, Montana and Wyoming.
Frequently asked questions
Is it illegal to possess mushroom spores in Idaho?
Yes. The spores are a Schedule I controlled substance under § 37-2705(d), and possession is a misdemeanor under § 37-2732(c).
Is it a felony to sell or ship spores into Idaho?
Yes. Delivering, or possessing with intent to deliver, a Schedule I non-narcotic is a felony under § 37-2732(a), with up to five years and $15,000.
Why does Idaho ban spores when they contain no psilocybin?
Because the legislature chose to list them directly, by what they are “capable of producing,” rather than by what they contain. The chemistry argument that works federally and in 46 states does not apply where the statute names the spores.
Can I order spores from out of state and have them shipped to Idaho?
Reputable vendors will refuse. The shipment is a delivery of a Schedule I substance into Idaho.
Are gourmet mushroom spores legal in Idaho?
Yes. Only spores or mycelium “capable of producing mushrooms that contain psilocybin or psilocin” are listed.
Has Boise or any Idaho city decriminalized psilocybin?
No. No Idaho jurisdiction has passed a deprioritization measure.
Is there a research exception?
Not in the schedule. Idaho, like other states, allows registered researchers to handle controlled substances under the state’s registration rules, but there is no microscopy or hobbyist exception for spores.
Sources
- Idaho Code § 37-2705 — Schedule I (Idaho Legislature)
- Idaho Code § 37-2732 — Prohibited acts and penalties (Idaho Legislature)
- DEA letter on the federal status of spores (January 2, 2024, PDF)
- Reason Foundation, State Psychedelics Policy Roundup (March 2026)
Not in Idaho?
We ship to the 46 states where spores are legal. Our Psilocybe cubensis spore syringes are 10 cc syringes filled in our ISO-7 cleanroom. Orders placed by 1 p.m. Eastern on a weekday ship the same day. You get free shipping on orders over $100, up to 40% off with our 3-, 5- and 10-packs, and a 30-day warranty. They are sold for microscopy and taxonomy use only.
