Strong CBD flower: 72 levels compared, price doesn't follow

French law never defines a "strong" CBD flower. Its only limit concerns THC. The order of 30 December 2021 authorises hemp varieties with no more than 0.30% Δ⁹-THC and holds the products made from them to that same level. The Conseil d'État decision of 29 December 2022 then struck down the ban on selling raw flowers. Nothing caps the CBD level.

A flower at 14% CBD is therefore exactly as legal as one at 7%. It is no closer to cannabis either, because CBD has none of THC's psychoactive effect at any level. A higher level simply means more cannabidiol per gram. This point is covered in our article does CBD get you high?

For an order of magnitude, we noted the CBD level shown on each of the 72 pages in the CBD flowers category on 23 September 2026. Every page carries a batch number and a date, all from June 2026. The values come from our product database, and the laboratories' PDF certificates are not published yet.

The median sits at 10.8%, and the top value, 14.4%, belongs to Gelonade. The Δ⁹-THC shown runs from 0.12 to 0.29%; these are reference values, and on their own they do not prove that a batch complies. For comparison, a French study of 223 CBD products of every kind, flowers, resins, oils and sweets, measured a median level of around 4%.

A simple rule follows from these figures. Above 12%, a flower is at the top of what we record; above 15%, it falls outside this series. A level far higher than that calls for an explanation of where it comes from. A flower coated in extract and pollen, such as moon rock, shows a level the plant did not reach on its own. Coating is legal, though the result is no longer the same flower.

Of these flowers, 63 are sold by the gram, at a first-tier price between €3.45 and €8.95. Plotted against the stated level, that price shows no trend, and the flowers richest in CBD are not the dearest.

The figure worth comparing is the price of 100 mg of CBD. Divide the price per gram by the percentage and multiply by ten: 4.95 ÷ 14.3 × 10 = €3.46. The table applies this to five flowers at the first tier.

Skunk and Lemon Haze have the same price per gram, yet Skunk delivers 1.9 times more CBD. From the cheapest flower in the table to the dearest, the price of 100 mg of CBD varies by a factor of 3.7. The quantity you buy counts as well: on most pages priced at €4.95, the gram falls to €1.92 from 50 g, which is 61% less. Our article on CBD prices in France sets these gaps against the wider market.

A level printed on a label is a statement and nothing more. What counts is the batch certificate of analysis, usually produced by liquid chromatography (HPLC). Three of its lines are enough to judge a "strong" flower.

The 0.877 factor is plain chemistry. CBDA is the acid form the plant makes, and when heated it loses a carboxyl group, about 12% of its mass. Take two bags labelled "15%". The first certificate lists 3.1% CBD and 12.6% CBDA, so its total CBD is 3.1 + 12.6 × 0.877, or 14.2%. The second states "CBD 15%" with no CBDA, no batch and no date. The first figure is a measurement; the second is a claim. Each line is explained in our guide to reading a certificate of analysis, and the laboratory page describes the methods.

With a flower sold as "strong", the risk lies in the gap between the label and the contents, and CBD has nothing to do with it. The addiction monitoring centres of Paris, Lyon and Montpellier, working with the toxicology laboratory of Lille University Hospital, bought 223 CBD products for a study in July 2022 and April 2023. Two thirds were bought online, the rest in specialist shops, tobacconists, pharmacies and vape shops.

The findings cover all of these channels. Just one product in two gave its composition on the label. Of those, 19% came within 20% of the stated level, and 69% held less CBD than announced. Twenty-eight samples, or 12.5%, were above 0.3% THC, with a maximum of 1.2%. Twelve, or 5.4%, contained a semi-synthetic cannabinoid that was not declared, and the full report names HHC and H4-CBD among them.

On 19 June 2025, the ANSM and Anses warned of several hundred poisonings since early 2024. The products involved were sold as CBD and contained HHC, H4-CBD, a synthetic cannabinoid or too much THC. A flower that gets you "wasted" is a non-compliant flower, whatever its CBD level. Our articles on H4CBD and on PTC describe these products.

Two risks apply at any level. Smoking any plant exposes you to combustion products, which our article on smoking hemp covers. Trace THC in a flower can also show up in a saliva test, even when the product is legal.

Two flowers at 11% CBD can smell nothing alike. Their aroma comes from terpenes, which are more fragile than cannabinoids. In a study published in 2024 in the journal Plants, flowers were stored for four months at 4 °C. Depending on the treatment, some monoterpenes such as β-myrcene lost 19 to 51%, while the main cannabinoid lost 4 to 23%.

So the batch date also tells you something about the smell. The growing method affects consistency from one batch to the next more than it affects the level, as our comparison of indoor, outdoor and greenhouse explains. To keep a flower in good condition, follow our storage advice. Resins reach higher levels because sieving concentrates the trichomes, and our guide to strong CBD resin takes over from this one.

1. Paying for the percentage printed on the label. In the study cited above, 69% of labelled products held less CBD than announced, so ask for the level measured on the batch.
2. Mixing up "CBD" and "total CBD". If the converted CBDA is left out, the figure may come out too high or too low.
3. Comparing the price per gram. When two flowers differ in level, only the price of 100 mg of CBD puts them side by side.
4. Treating a spectacular level as a bargain. When a figure goes beyond what raw flowers reach, ask how it was obtained.
5. Accepting a certificate without a batch number. A generic document describes some other bag than the one you hold.