THCA Flower in Missouri: Is It Legal And Where to Buy

Is THCA Flower Legal in Missouri

Cannabis in Missouri is legal for recreational and medical use. The state legalized hemp in 2019 but has no regulations for intoxicating hemp products. Does THCA flower fall under Missouri hemp or marijuana regulations?

Can you order THCA flower in Missouri online? In this article, we explore the current legal status of this type of flower, possession limits, and where to purchase.

Last Update: May 28, 2024 


  • THCA flower is legal in Missouri but remains unregulated under state law. 
  • The state legalized hemp in 2019 under SB 133 and doesn’t have a total THC standard for finished hemp products. 
  • State lawmakers aim at regulating the market of intoxicating hemp-derived products, like delta 8 and THCA flower. 
  • Missouri legalized medical marijuana in November 2018. Eligible patients can purchase cannabis from a licensed dispensary. 
  • Cannabis is also legal for recreational use in this state. Adults 21 and over can possess up to 3 ounces of marijuana at a time. 

Where to Buy THCA Flower in Missouri? 

The best place to purchase THCA flower in Missouri is online, from a specialized hemp flower shop like Mr. Hemp Flower. 

A shop focused on the ins and outs of different types of hemp flower is the safest place for THCA flower in the current market. We offer clean, pesticide-free, toxin-free THCA flower that’s expertly grown by US-based cultivators. 

You can explore our unique or classic indica, sativa, or hybrid THCA flower strains here. Each strain is highly potent and offers an exceptional experience tailored to your needs. Our THCA flower comes with a Certificate of Analysis that shows its high potency (20%-30% total THC). 

If you’re eligible for an MMJ card in this state, you can also purchase THCA flower from a dispensary. However, the process of getting this card is often complicated, and it comes with hefty fees. 

So, if you want to try federally compliant, tested, organically grown THCA flower without the price tag, shop our premium line of strains.

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Is THCA Flower Legal in Missouri? 

Yes, THCA flower is unrestricted in Missouri.

Under state law, you can lawfully sell, use, and possess THCA flower and smokable hemp products with a delta 9 THC concentration of no more than 0.3% by dry weight. Although legal, hemp-derived intoxicating products like THCA and delta 8 remain unregulated in Missouri. 

Missouri legalized hemp in June 2019 under SB 133 and medical marijuana in November 2018 after voters approved Amendment 2. Recreational cannabis is also legal in Missouri, so adults 21 and over can possess up to 3 ounces of dried marijuana. 

The state doesn’t have a total THC standard for finished hemp products. This means that a product is lawful if its delta 9 THC levels don’t exceed 0.3% by dry weight. 

However, things may change as state lawmakers are in the process of several hearings over bills that would eventually regulate intoxicating products derived from hemp. For now, you can purchase THCA flower in Missouri with no restrictions.

Read more: The Legal Status of Smokable Hemp Flower in Missouri

What is THCA Flower? 

THCA flower is legal hemp flower that has the potential to get you intoxicated. The chemical composition of THCA flower is almost identical to that of regular cannabis flower. 

The only difference is that the delta 9 levels in THCA flower don’t exceed 0.3% by dry weight. So, despite providing an intoxicating experience, THCA flower is classified as hemp. 

Is THCA Legal Federally? 

Hemp-derived THCA is legal under federal law. 

The 2018 Farm Bill legalized all hemp cannabinoids, acids, and isomers, which by default includes tetrahydrocannabinolic acid (THCA). This cannabinoid is a fragile molecule and the precursor to delta 9 THC. When exposed to heat, it loses a carboxylic group and transforms into delta 9, the intoxicating cannabinoid. 

Federal law doesn’t explicitly ban hemp-derived THCA and its sale and distribution. And, it considers hemp THCA products with a delta 9 THC of no more than 0.3% legal regardless of their THCA concentration. 

This is because federal law doesn’t regulate finished hemp products and defines hemp as a crop with a limited delta 9 concentration. So, if hemp flower tests within the legal limits for delta 9 (less than 0.3%), it’s lawful regardless of its THCA concentration. 

Is THCA a Controlled Substance in Missouri?

No, Missouri doesn’t explicitly ban the sale, use, and possession of THCA. 

The state legalized hemp and its cannabinoids in 2019, so hemp-derived THCA falls under current law. You can purchase THCA products like THCA flower in this state if their delta 9 THC levels are below the 0.3% threshold.

Buy THCA Flower in Missouri

Can I Order THCA Flower Online in Missouri? 

Yes, you can order THCA flower in Missouri online without restrictions.

The state doesn’t explicitly prohibit the sale, use and possession of THCA hemp flower. But, it’s important to make sure you’re getting it from a reputable shop. Also, watch this space closely as Missouri legislators may regulate intoxicating hemp products more strictly. 

Are There Any THCA Possession Limits in Missouri?

No, THCA flower remains unregulated in this state, so it has no set possession limits.  

You can purchase as much THCA flower as you wish because the state doesn’t regulate this product. Cannabis flower for recreational use is legal in Missouri. Adults 21 and over can possess up to 3 ounces of flower at a time. 

Is THCA Flower Safe? 

Yes, THCA flower is perfectly safe if bought from a reputable store. 

The THCA flower market is an unregulated space and buying for a cheap price on the account of quality can backfire. 

If you want premium flower, purchase from a hemp flower shop like Mr. Hemp Flower. We specialize in different types of hemp flower and offer expertly-grown, premium strains cultivated using organic practices. 

Furthermore, ensure safe consumption by going easy on the dosage. Avoid adverse effects by starting low and increasing the dose gradually. High doses of THCA flower can lead to: 

  • Dry mouth
  • Red eyes
  • Dizziness
  • Drowsiness
  • Nausea
  • Vomiting
  • Paranoia
  • Anxiety 

Although common, these side effects can appear as mild, moderate and severe, depending on the dosage and your tolerance levels. 

Final Thoughts: Is THCA Flower Legal in Missouri? 

THCA flower is legal in Missouri but remains unregulated. 

In Missouri, you can order lawful THCA hemp flower online and have it delivered to your door. The state doesn’t have a total THC standard for finished hemp products. So, if THCA flower contains less than 0.3% delta 9 when tested pre-harvest, it’s lawful hemp. 

Both medical and recreational cannabis are legal in this state. If you’re 21 and older, you can purchase THCA flower in licensed dispensaries in Missouri.

FAQs on THCA Flower Missouri

Yes, THCA flower is sold in Missouri, but its sale and possession remain unregulated. 

It depends on the source. Hemp-derived THCA is legal in states that legalized hemp, while illegal if derived from marijuana. 

Yes, if you consume it decarbed through vaping and smoking, you will fail a drug test. The reason is simple, THCA converts into delta 9 when heated, so you’re basically consuming delta 9 through these methods. A standard drug test detects THC’s metabolites, hence the possibility to test positive. 

THCA flower is not explicitly prohibited in Missouri, so if its delta 9 levels don’t exceed 0.3%, you can send or receive this product via USPS. Keep in mind this is risky because THCA flower resembles marijuana, which is a Schedule I drug federally. 

A quick way to prove your product is legal THCA flower is to carry a Certificate of Analysis issued by a third-party lab. 

Yes, THCA flower will get you intoxicated if you consume it through smoking or vaping. Heat converts the THCA in the flower into delta 9 THC, the main psychoactive compound in cannabis. 

It’s not recommended to travel with THCA flower due to its resemblance to marijuana. This is because marijuana is a Schedule I drug at the federal level. 

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