Since early 2022, the flower dispensed in England has become 35% stronger, from 18.4% to 24.9% THC on average. The price of a gram barely followed: £6.13 then, £6.59 now. So every milligram of THC costs patients 21% less, and almost none of that came from list-price cuts: stronger flower simply is not priced proportionally higher, and the recent cuts land hardest on the most potent products. Here is where UK medical cannabis prices stand, in five charts, from our UK market report and our webinar on how UK brands compete.
• 1 · Potency and the mix price
Patients pay about the same for a gram, but get far more THC in it
Hold every product at one list price and track what patients actually received, and the mix price per gram rises from £6.13 to a £6.73 peak at the end of 2024, then eases to £6.59. Over the same quarters the price per milligram of THC falls almost without a break, from 3.34p to 2.63p.
The engine is potency. Flower under 20% THC was 58% of volume in 2022 Q1 and 7% by 2025 Q4; flower at 28% and over went from nothing to 29%. Stronger flower was not priced proportionally higher, so each step up the potency ladder made THC cheaper.
• 2 · Origin
Where flower is grown sets the price of THC more than potency does
Plot every THC-dominant flower SKU dispensed in England in 2025 by price and potency, and the relationship is loose: each extra £1 a gram buys only about 0.9 points of THC (r = 0.29). The same 25% THC flower is listed anywhere from about £4 to £9. Origin explains more of the spread.
- Canada costs more per gram, less per milligram. £6.84/g at 26.4% THC is 2.59p per mg, 7.5% cheaper than Portuguese flower (£6.06/g, 21.7%).
- UK-grown flower carries a domestic premium. £7.83/g at 21.4% THC makes it the most expensive THC on the formulary, 3.67p per mg, about 40% above Canada.
- South Africa is the value origin. The lowest price per gram among the larger origins, £5.69, and the cheapest THC at 2.50p per mg.
• 3 · The price ladder
The middle of the price ladder emptied, and the list-price cuts landed at the top
The price mix has split in two. The £5–6 band, once the default, fell from 52% of flower volume to 33%. Flower at £7 and over grew from 16% to 38%, and sub-£5 flower from 2% to 8%. A new launch now prices against both a premium and a discount anchor.
List prices themselves have only started to move. Comparing the same products in the October 2025 and August 2026 formularies, four in five flower SKUs and 19 in 20 oils kept their price. Where prices moved, they moved a lot: the median flower cut was 16%. Like-for-like, flower fell 3.5%, vapes 3.0% and oils 0.3%.
Formulary averages fall faster than like-for-like prices because new products arrive cheaper: the average listed flower went from £7.10 to £6.71 a gram. Vapes moved furthest on value: their price per mg of THC fell from 23.2p in 2022 to 7.8p in 2025 Q4 as cartridges got bigger and stronger.
Erosion, not collapse.The view from our webinar: controlled-drug status, closed clinic formularies and dynamic discounting make a German-style price crash unlikely. The pressure lands on premium, high-THC flower and on UK growers selling at £8 a gram.
• Watch the webinar
Pricing was one of four themes. Watch the full hour.
Arnau Valdovinos and Georgia Glick on how UK brands compete on a crowded formulary: the four ways to win, why consistent supply matters, items versus volume, and where prices go next.
Recorded live on LinkedIn, 6 October 2026 · Open on YouTube
• Go further
The rest of the UK story
England only, and pharmacy submission is manual, so volumes are a floor. Values use constant August 2026 list prices unless stated. Sources: NHSBSA FOI_03941 and FOI-03965 (items dispensed, 2021–2025); MedBud formulary snapshots (October 2025, February 2026, August 2026); CannaMonitor UK product index; Home Office import data. More analysis in Cannamonitor Insights.