Are Mushroom Spores Legal in Connecticut? Yes — Here’s the Statute (2026)

By The Spore Source · Last checked against the statute: September 26, 2026

Intended use and disclaimer. We sell Psilocybe cubensis spore syringes for microscopy, taxonomy and educational use only, and we ship to Connecticut. This page is general information, not legal advice; only a lawyer licensed in Connecticut can tell you how the law applies to you.

In this guide

• What Connecticut law says (and doesn’t say)
• Why spores are legal when the mushrooms are not
• Penalties for the mushrooms themselves
• The paraphernalia law: CGS 21a-267
• Hartford, New Haven, Stamford: any local decriminalization?
• Decriminalization bills and the therapy pilot program
• Buying spores in Connecticut
• Frequently asked questions
• Sources

What Connecticut law says (and doesn’t say)

Connecticut sorts drugs differently from most states. Its drug statute, chapter 420b of the General Statutes, groups controlled substances into its own categories, and one of them is “hallucinogenic substances.” Section 21a-240(23) defines them as “psychodysleptic substances, other than cannabis-type substances, which assert a confusional or disorganizing effect upon mental processes or behavior and mimic acute psychotic disturbances.” The same definition names examples: “Exemplary of such drugs are mescaline, peyote, psilocyn and d-lysergic acid diethylamide, which are controlled substances under this chapter unless modified.”

The actual schedules are not in the statute. Section 21a-240(9) defines a “controlled substance” as a drug “in schedules I to V, inclusive, of the Connecticut controlled substance scheduling regulations adopted pursuant to section 21a-243.” Schedule I is section 21a-243-7 of the Regulations of Connecticut State Agencies, and it lists “(32) Psilocybin” and “(33) Psilocyn” in subsection (c).

That is where the mushroom compounds live in Connecticut law. The Schedule I regulation does not mention spores. The definitions in section 21a-240 do not mention spores, mycelium or mushrooms either. Connecticut has never written spores into its law.

Why spores are legal when the mushrooms are not

A spore contains no psilocybin and no psilocyn. Connecticut’s schedule reaches the listed substances themselves, and a spore contains neither of them, so it is not a controlled substance. The federal government reached the same conclusion. On January 2, 2024, the DEA’s Drug & Chemical Evaluation Section confirmed in writing that mushroom spores that do not contain psilocybin or psilocin are not controlled. The letter also says that “if at any time the material contains a controlled substance such as psilocybin or psilocin (for example, upon germination), the material would be considered a controlled substance under the CSA.” Our state-by-state guide covers the federal letter in detail.

Connecticut’s definition of “manufacture” in section 21a-240(28) is “the production, preparation, cultivation, growing, propagation, compounding, conversion or processing of a controlled substance.” Germinating a spore is propagation. The line in Connecticut is the same as the federal line: the spore is legal, and the germinated material is not.

Penalties for the mushrooms themselves

Because psilocybin is a hallucinogenic substance under Connecticut law, the penalties below apply to psilocybin mushrooms.

• Possession (CGS 21a-279(a)): possessing “any quantity” of a controlled substance other than cannabis is a class A misdemeanor, which carries up to one year in jail and a fine of up to $2,000. For a second offense, the court evaluates the person and may order treatment instead of prosecution. For later offenses, the court may treat the person as a persistent offender.
• Manufacture, sale or possession with intent to sell (CGS 21a-277(a)): the statute covers any controlled substance that is a “narcotic substance” or a “hallucinogenic substance.” A first offense carries up to 15 years in prison and a fine of up to $50,000, and repeat offenses carry higher maximums. Because “manufacture” includes cultivation and propagation, growing mushrooms from spores is charged here.

The paraphernalia law: CGS 21a-267

Connecticut’s paraphernalia law is the part of the statute that matters most to a spore buyer, because it depends on intended use.

• The definition in section 21a-240(20)(A) covers equipment “used, intended for use or designed for use in planting, propagating, cultivating, growing, harvesting, manufacturing” a controlled substance. It specifically includes “kits intended for use or designed for use in planting, propagating, cultivating, growing or harvesting of any species of plant which is a controlled substance or from which a controlled substance can be derived.”
• Using or possessing paraphernalia with intent to use it for any of those purposes is a class C misdemeanor under section 21a-267(a), which carries up to three months in jail and a fine of up to $500.
• Delivering or making paraphernalia while knowing, or when one reasonably should know, that it will be used that way is a class A misdemeanor under section 21a-267(b).

A spore syringe bought for study is not paraphernalia. The same syringe next to cultivation equipment, with a stated plan to grow mushrooms, can be. This is why we sell spores for microscopy only, do not provide cultivation instructions, and cancel orders from customers who tell us they intend to cultivate.

Hartford, New Haven, Stamford: any local decriminalization?

No Connecticut city or town has passed a psilocybin decriminalization or deprioritization measure. A local measure would not change anything for spores in any case, because spores are already legal statewide. If you live near the state line, our Massachusetts guide explains the law there.

Decriminalization bills and the therapy pilot program

Connecticut lawmakers have spent several sessions on psilocybin. The bills fall into two groups: decriminalizing small amounts, and giving certain patients access to psilocybin-assisted therapy.

• The therapy pilot program (2022). A law passed in 2022, now section 17a-484g of the General Statutes, told the Department of Mental Health and Addiction Services to set up a psychedelic-assisted therapy pilot program by January 1, 2023, “within available appropriations.” A medical school runs it, and it provides MDMA-assisted or psilocybin-assisted therapy through a research program approved by the FDA. The law limited it to “qualified patients,” meaning Connecticut residents who are veterans, retired first responders or direct care health care workers.
• House Bill 6734 (2023). This bill would have made possession of less than half an ounce of psilocybin a civil infraction with a $150 fine for a first offense instead of a misdemeanor. The House passed it 86 to 64 on May 10, 2023. The Senate put it on its calendar but never voted on it, so it died.
• House Bill 5297 (2024). A similar decriminalization bill passed the Judiciary Committee in March 2024 and never reached a vote in either chamber.
• House Bill 7065 (2025). The House passed another half-ounce decriminalization bill 74 to 65 on May 19, 2025. Again, the Senate never took a vote.
• Senate Bill 191 (2026). This bill opens the pilot program to any adult 18 or older who meets its clinical criteria, not just veterans and first responders, and removes the rule that the program must end once the DEA approves psilocybin or MDMA for medical use. The Senate passed it 35 to 0 and the House 122 to 27, and Governor Ned Lamont signed it on June 4, 2026. It is now Public Act 26-108.

As of September 2026, possession of psilocybin mushrooms remains a class A misdemeanor in Connecticut. None of these bills affects spores, which were legal before all of them.

Buying spores in Connecticut

• It is legal to buy and own Psilocybe cubensis spores in Connecticut for microscopy, taxonomy and educational use.
• Ordering online is legal. Federal mail rules bar controlled substances and paraphernalia, and spores are neither. We ship to Connecticut.
• Use spores for study only. Connecticut’s paraphernalia law depends on intent, and its definition of manufacture includes propagation. Spores for microscopy are a legal hobby, and anything that points toward cultivation is where the law starts.

If you are comparing nearby states, see our guides for New York, Massachusetts and New Jersey.

For a neighboring state, see our guide to Rhode Island.

Frequently asked questions

Are mushroom spores legal in Connecticut?

Yes. Spores contain no psilocybin or psilocyn, and neither Connecticut’s Schedule I regulation nor the definitions in its drug statute mention spores. Growing mushrooms from them is illegal.

Is it legal to buy mushroom spores in Connecticut?

Yes. Connecticut’s Schedule I regulation lists psilocybin and psilocyn and says nothing about spores, which contain neither substance.

Is it legal to order mushroom spores online in Connecticut?

Yes. No Connecticut or federal law bars mailing spores. The mail rules cover controlled substances and paraphernalia, and spores are neither.

Are Psilocybe cubensis spores legal in Connecticut?

Yes. The species does not change the answer, because no Psilocybe spore contains a Schedule I substance.

Are psilocybin mushrooms legal in Connecticut?

No. Possessing any amount is a class A misdemeanor, with up to one year in jail. Growing, selling or possessing them with intent to sell falls under section 21a-277(a), with up to 15 years in prison for a first offense.

Did Connecticut decriminalize psilocybin?

No. The House passed decriminalization bills in 2023 and 2025, but the Senate never voted on either one. The 2026 law expanded the therapy pilot program and did not change the criminal penalties.

Are mushroom grow kits legal in Connecticut?

A kit for culinary species is legal. A kit used or intended for growing a controlled substance is drug paraphernalia under section 21a-240(20)(A), and it is also paraphernalia under federal law. We do not sell cultivation kits or supplies.

Do you ship spore syringes to Connecticut?

Yes, to every Connecticut address. The only states we exclude are California, Florida, Georgia and Idaho.

Sources

• Regs. Conn. State Agencies § 21a-243-7 — Schedule I (psilocybin and psilocyn at (c)(32)–(33))
• Conn. Gen. Stat. chapter 420b: § 21a-240 (definitions of “controlled substance,” “drug paraphernalia,” “hallucinogenic substances” and “manufacture”), § 21a-267 (drug paraphernalia), § 21a-277 (manufacture and sale), § 21a-279 (possession)
• Conn. Gen. Stat. §§ 53a-36 and 53a-42 — misdemeanor jail terms and fines
• Conn. Gen. Stat. § 17a-484g — psychedelic-assisted therapy pilot program
• H.B. 6734 (2023), file copy, H.B. 7065 (2025), file copy and Public Act 26-108 (S.B. 191, 2026)
• CT Mirror, May 19, 2025, on the House vote on H.B. 7065
• DEA letter on the federal status of spores (January 2, 2024, PDF)