THCA Flower in Idaho: Will it Ever be Legal?

Is THCA Flower Legal in Idaho

Idaho’s hemp laws are the most restrictive in the nation. While you can find CBD in local shops, products like THCA flower are strictly unlawful. Is it safe to purchase THCA flower in Idaho? In this article, we’ll dive into the legality of this type of flower, where to buy it, possession limits and safety.

Last Update: May 26, 2024 


  • THCA flower is not legal in Idaho because the state has a strict “zero THC” law for hemp products. 
  • Idaho legalized hemp in 2021 under HB 126. 
  • Only CBD isolate (no THC) and broad spectrum CBD products (no THC) with terpenes can be lawfully sold in this state. 
  • Smokable hemp and full spectrum CBD products with a 0.3% delta 9 THC concentration are not legal in Idaho. 
  • Under the 2018 Farm Bill, hemp is a lawful product if it contains no more than 0.3% delta 9 THC. 

Where to Buy THCA Flower in Idaho? 

It’s best to avoid buying THCA flower in Idaho because it’s illegal.

You might be able to purchase THCA flower in Idaho’s local shops and find online vendors that ship to the state. But, purchasing this product is a huge risk due to strict THC laws.

If the laws ever change, treat yourself to organic, expertly-grown THCA flower from Mr. Hemp Flower. USA-licensed farmers cultivate our hemp flower, experts whom we have trusted with this crop for over six years. Our organically-grown hemp is tested by a third-party lab and comes with a detailed Certificate of Analysis (CoA). 

The CoA shows that we offer federally compliant hemp with no more than 0.3% delta 9 THC by dry weight. This document also shows the levels of other cannabinoids and terpenes in a specific batch. 

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Is THCa Flower Legal in Idaho?

THCA flower is illegal in Idaho. 

The state has a “zero THC” law for hemp products. This means that a lawful hemp-derived product must not contain any concentration of THC.  

Idaho legalized hemp under HB 126 in April 2021. Products containing THC are not allowed for sale in this state and are considered marijuana.

The only hemp products allowed for sale are CBD isolate (zero THC) and broad spectrum products with terpenes (still no THC). So, full spectrum products (0.3% THC) are not legal in Idaho. 

Although hemp is legal in Idaho, smokable hemp products are not. Hemp flower contains 0.3% delta 9 THC by dry weight, which makes it legal under federal but not state law. 

Idaho’s “zero THC” policy may go against federal provisions for hemp and hemp products. Under federal law, hemp is lawful if its delta 9 THC concentration doesn’t exceed 0.3%. But this is debatable, and state law shouldn’t be dismissed when it comes to purchasing THCA flower in Idaho. 

What is THCA Flower? 

THCA flower is a hemp flower with up to 25% THCA and delta 9 THC of no more than 0.3%. This type of flower offers the typical marijuana experience because THCA turns into delta 9 THC when heated. But, it’s considered legal hemp because its delta 9 THC levels don’t exceed more than 0.3% by dry weight. 

Tetrahydrocannabinolic acid (THCA) is the acidic precursor to delta 9 THC and a biologically inactive cannabinoid. This cannabinoid is non-intoxicating by nature, so unless heated, it won’t get you high.  

Is THCA Legal Federally? 

The 2018 Farm Bill legalized hemp with a delta 9 THC concentration of no more than 0.3%. 

THCA flower is technically legal under federal law because — even though it has high THCA levels — the important metric for legality is its delta 9 THC concentration. 

For hemp flower to be deemed lawful federally, it must be tested before harvest. Most states test for total THC levels (THCA + delta 9 THC) in hemp 30 days before harvest. Under federal law, the total THC concentration in hemp must not exceed 0.3% by dry weight. 

After the initial test (pre-harvest) is done, hemp flower is lawful hemp under federal law if its delta 9 THC concentration doesn’t exceed 0.3% by weight. This is because after harvest, hemp flower is a finished product, so the total THC rule doesn’t apply to it.

Buy THCA Flower in Idaho

Is THCA a Controlled Substance in Idaho?

Yes, THCA is a controlled substance in Idaho. 

The state has a strict no THC law, so any derivatives of THC are prohibited. Products that contain delta 9 THC — regardless if derived from hemp or marijuana — are illegal in this state and are considered marijuana. 

Is THCA Flower Safe?

If purchased from a reliable vendor, premium THCA flower is considered safe. 

When you buy THCA flower from a trustworthy buyer, like Mr. Hemp Flower, you are investing in safe consumption. Licensed US growers cultivate our hemp flower that’s free from contaminants and toxic by-products. You can find our premium hemp flower here

Another step to ensuring safe consumption is to take a dosage that matches your tolerance levels. As a beginner, your tolerance levels to THC are pretty low, so you should start with a single puff. 

You can check a strain’s cannabinoid levels in a Certificate of Analysis. We offer a CoA with every hemp flower strain, but not every brand does, so beware of those sellers. 

You may experience some side effects after consuming THCA flower, including:

  • Dry mouth 
  • Red eyes 
  • Dizziness
  • Drowsiness 
  • Fatigue
  • Nausea 
  • Lightheadedness
  • Anxiety
  • Paranoia 

Are There Any THCA Possession Limits in Idaho?

Idaho has no set possession limits on THCA flower

State law explicitly bans products with any THC levels, regardless of whether they are derived from hemp or marijuana. So, there are no regulations for this type of product in Idaho, including possession and use. 

Final Thoughts: Is THCA Flower Legal in Idaho? 

THCA flower is illegal in Idaho. 

The state has a “zero THC” law in products, regardless of whether they come from hemp or marijuana. You can lawfully purchase CBD isolate (no THC) and broad spectrum hemp products (again, no THC) with terpenes. 

Full spectrum THC products (containing less than 0.3% THC) are not legal in Idaho and are considered marijuana. 

FAQs on THCA Flower Idaho

THCA flower is not legally sold in Idaho, but some vendors may offer it for sale online. This type of flower is not legal to buy in this state, so purchase at your own risk. 

THCA is legal in states that have removed hemp and acids from the list of controlled substances. 

If vaped or smoked, THCA will show up on a drug test. The heat converts THCA into delta 9 THC, the intoxicating cannabinoid in hemp. Once converted, THC’s metabolites are detected by a standard drug test. 

Sending or receiving THCA flower via USPS in Idaho is illegal. State law explicitly prohibits the sale, use, and possession of hemp products with any THC. 

A Certificate of Analysis issued by a certified lab is a document that shows the THC concentration in THCA flower. It’s a document that proves the legality of a product, but depending on the state you’re in, additional lab testing might be needed. 

Yes, THCA flower will get you high if you smoke it, vape it, or cook with it. Heat converts THCA into THC, the primary psychoactive compound in cannabis. 

You can travel with THCA at your own risk and by carrying a Certificate of Analysis that proves the product is legal hemp. 

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