Where can I grow hemp (Autoflowering)?
Cannabis sativa · Fiber · Annual
Hemp (Autoflowering) is a great fit (80+) on 107.1 million km² (41.3 million sq mi) of land in 229 countries, 48% of it only with irrigation. The most well-suited land is in Pará, Brazil, Minas Gerais, Brazil and Amazonas, Brazil. Where it can't grow, it's usually growing season too cool (100%).
Tap the map for the score at any spot. Each square is a 28 km (17 mile) grid cell.
- Great fit (80+)
- 107.1M km²(41.3M sq mi)
- 74% of land
- Worth a try (50–79)
- 7.4M km²(2.9M sq mi)
- 5% of land
- Great fit without irrigation
- 55.6M km²(21.5M sq mi)
- Rain alone is enough
- Countries
- 229
- With great-fit land
Regions with the most suitable land
- 1
- 2
🇧🇷Minas Gerais, Brazil
Great fit on 564k km² (218k sq mi)
For example Belo Horizonte (100), Uberlândia (100)
- 3
- 4
- 5
- 6
🇨🇳Heilongjiang, China
Great fit on 390k km² (150k sq mi) · worth a try on 25k km² (9,700 sq mi)
For example Hegang (100), Shuangyashan (100)
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
🇨🇦Ontario, Canada
Great fit on 237k km² (91k sq mi) · worth a try on 38k km² (15k sq mi) · mostly with irrigation
For example Kenora (100), Clarence-Rockland (100)
Regions are states and provinces, counting land within 75 km of a town. At most three per country, so the list covers the world.
By country
- 🇧🇷Brazil6.0M km² (2.3M sq mi) · 100% of its land
- 🇺🇸United States5.2M km² (2.0M sq mi) · 93% of its land
- 🇨🇳China4.9M km² (1.9M sq mi) · 88% of its land
- 🇮🇳India3.1M km² (1.2M sq mi) · 97% of its land
- 🇷🇺Russia3.0M km² (1.2M sq mi) · 60% of its land
- 🇲🇽Mexico1.6M km² (610k sq mi) · 98% of its land
- 🇮🇩Indonesia1.6M km² (598k sq mi) · 99% of its land
- 🇮🇷Iran1.4M km² (539k sq mi) · 100% of its land
- 🇦🇷Argentina1.4M km² (536k sq mi) · 88% of its land
- 🇨🇩Democratic Republic of the Congo1.1M km² (433k sq mi) · 100% of its land
Best-suited towns
- 100%fit
🇮🇳 Odisha, India
- 100%fit
🇨🇳 Shandong, China
- 100%fit
🇨🇳 Liaoning, China
- 100%fit
🇧🇷 Paraná, Brazil
- 100%fit
🇨🇳 Hubei, China
- 100%fit
🇨🇲 North-West, Cameroon
- 100%fit
🇲🇽 Jalisco, Mexico
- 100%fit
🇯🇵 Japan
- 100%fit
🇨🇳 Sichuan, China
- 100%fit
🇰🇵 Nampo, North Korea
- 100%fit
🇨🇳 Guizhou, China
- 100%fit
🇨🇳 Guangdong, China
The most comfortable fits among the 2,000 biggest towns, two per region.
What hemp needs
- Growing-season average
- Ideal 64–82°F (18–28°C)Won't grow below 57°F (14°C) or above 91°F (33°C)
- Coldest growing-season night (monthly average)
- Ideal at least 41°F (5°C)Won't grow below 32°F (0°C)
- Growing-season rain
- Ideal 14–28 in (350–700 mm)Won't grow below 7.9 in (200 mm) or above 47 in (1,200 mm)
Grain and fibre cultivars bred at high latitudes flower too early under the short days of the tropics. Licensing rules vary by country. Autoflowering: Day-neutral: flowers on age, not day length, so it suits low latitudes and short seasons.
Sources: Amaducci et al. 2015, Key cultivation techniques for hemp in Europe and China (Industrial Crops and Products); FAO ECOCROP: Cannabis sativa. Ranges not yet reviewed by an agronomist.
What stops it elsewhere
- Growing season too cool100%
Share of the land scoring under 50, by what holds it back most.
How this map works
Every 28 km square of land is scored 0–100 against the requirements above, using 1991–2020 monthly climate averages with frost, chill and heat estimated by simulating daily weather. This map is for Hemp (Autoflowering) only. “With irrigation” ignores rain shortfalls; “Rain-fed only” counts them.
Climate is only part of it: soil, slope, water and markets decide where a crop is actually farmed. Use this to shortlist places, then check them locally.