
When to Harvest Hemp? How to Recognize the Perfect Harvest Window + 2026 Moon Calendar
Disclaimer: This article is for educational purposes only and refers to legal cultivation and compliant raw materials. Always follow local regulations and the variety specifications provided by the producer.
The ideal harvest moment is a combination of plant maturity, weather conditions, and the intended end-use. The lunar calendar can be used as an additional planning layer—especially when choosing between several suitable days.
Important: Treat the producer’s flowering/maturity time as your baseline. In practice, it is usually safer to harvest at the recommended time or slightly later—never earlier.
Moon Calendar – How to Use It for Harvest Planning?
- Most commonly selected window: Waning Moon (from Full Moon to New Moon).
- Often avoided: the exact Full Moon and days with heavy dew or rain.
2026 Waning Moon Harvest Windows
| Cycle | Full Moon | New Moon | Harvest Window |
|---|---|---|---|
| January | 03.01 | 18.01 | 04.01–17.01 |
| February | 01.02 | 17.02 | 02.02–16.02 |
| March | 03.03 | 19.03 | 04.03–18.03 |
| April | 02.04 | 17.04 | 03.04–16.04 |
| May | 01.05 | 16.05 | 02.05–15.05 |
| June | 30.06 | 14.07 | 01.07–13.07 |
| July | 29.07 | 12.08 | 30.07–11.08 |
| August | 28.08 | 11.09 | 29.08–10.09 |
| September | 26.09 | 10.10 | 27.09–09.10 |
| October | 26.10 | 09.11 | 27.10–08.11 |
Trichomes – The Final Maturity Indicator
Trichomes are one of the most reliable ways to assess plant maturity:
- Clear – plant is still developing.
- Milky – advanced maturity stage.
- Amber – very mature stage, often first visible on the main top.
If most trichomes are milky and amber tones begin to appear on the main top, you are likely within the harvest window—but always in line with the producer’s timeline (never earlier).

Seed Production – Brief Note
For seed harvest, growers typically begin when around 70–80% of seeds are mature. Waiting too long may increase shattering losses.


