Hemp flower with THC, and hemp flower with none: what the numbers really say

The short of it. Every hemp flower has some THC. The question is how much, and the answer is on the lab report, not the label. Hemp flower bred for CBD has a little. High-THCA hemp flower, which is what this shop sells, has a great deal once you light it: it gets you high, and it shows up on THC drug tests.

Set Oct. 4, 2026.

☞ Three numbers on a lab report

Line	What it is	Why it matters
Delta-9 THC	THC already in the bud	The only number the federal hemp test counts until Dec. 11, 2026
THCA	The acid form of THC, the bulk of it in fresh flower	Turns into THC when heated
Total THC	Delta-9 THC + 0.877 × THCA	What you actually smoke; the federal test from Dec. 11, 2026

The 0.877 is chemistry. When heat strips THCA of its carboxyl group, the molecule loses about 12 percent of its weight, so each gram of THCA yields about 0.877 grams of THC. The USDA’s hemp rule writes the same formula (7 CFR 990.1).

☞ Hemp flower with THC: two worked examples

Lot	Delta-9	THCA	Total THC
A CBD-type hemp lot	0.10%	0.20%	0.10 + 0.877 × 0.20 = 0.28%
A high-THCA hemp lot	0.25%	22.0%	0.25 + 0.877 × 22.0 = 19.5%

Both lots pass today’s delta-9 test. Only the first would pass the total-THC test that starts on Dec. 11, 2026. The second is the kind of flower on our menu.

☞ Hemp flower with no THC does not exist

People search for “hemp flower no THC” hoping for flower that is safe for a drug test or free of any high. There is no such flower:

• Plants bred for CBD still make some THCA and delta-9 THC. A plant’s leaning toward CBDA or THCA is set largely by its genes, and CBD-type plants typically still carry a trace of THCA (de Meijer and colleagues, 2003).
• The legal limit is a ceiling of 0.3 percent, not zero.
• A drug test looks for THC and what the body makes of it. It does not care what the bag called the flower.

If you need flower with as little THC as possible, buy CBD-type hemp flower and read the total THC line, which should be well under 0.3%. This shop does not sell that today.

☞ Does hemp flower get you high?

High-THCA hemp flower does. Raw THCA does not itself produce a high, but smoking, vaporizing and baking convert it to THC quickly (Moreno-Sanz, 2016). A bud at 20% THCA smokes like a bud at about 17.5% THC.

So read “hemp” as a legal category. It tells you the lot passed a test on one number. It does not tell you the flower is mild.

☞ What is in our packets

Every packet here is high-THCA hemp flower, greenhouse or light-dep. It gets you high when smoked and will show up on THC drug tests. Each packet’s THCA percentage is shown when its Batch’s lab values are on file, and the full report is available on request otherwise (Lab reports).

☞ The law changes on December 11, 2026

From that date, federal law measures hemp by total THC, THCA included (Public Law 119-37, Sec. 781; the Dec. 11 date for flower is in H.R. 6500, Sec. 2019). High-THCA flower stops being hemp. This shop then sells only flower at or under 0.3% total THC, which will hold far less THC than today’s menu.

State law can be stricter than federal law, and in several states smokable hemp flower or high-THCA flower is already banned. Check yours before ordering.

Adults 21 and over only. Not legal or medical advice.