Where can I grow pecan?
Carya illinoinensis · Nut · Perennial
Pecan is a great fit (80+) on 15.6 million km² (6.0 million sq mi) of land in 65 countries, 53% of it only with irrigation. The most well-suited land is in Texas, United States, Buenos Aires, Argentina and Hunan, China. Where it can't grow, it's usually not enough winter chill (66%) and winters get too cold (20%).
Tap the map for the score at any spot. Each square is a 28 km (17 mile) grid cell.
- Great fit (80+)
- 15.6M km²(6.0M sq mi)
- 11% of land
- Worth a try (50–79)
- 3.2M km²(1.2M sq mi)
- 2% of land
- Great fit without irrigation
- 7.1M km²(2.7M sq mi)
- Rain alone is enough
- Countries
- 65
- With great-fit land
Regions with the most suitable land
- 1
🇺🇸Texas, United States
Great fit on 406k km² (157k sq mi) · worth a try on 32k km² (12k sq mi)
For example Dallas (100), Fort Worth (100)
- 2
🇦🇷Buenos Aires, Argentina
Great fit on 219k km² (84k sq mi) · worth a try on 46k km² (18k sq mi)
For example Avellaneda (100), Merlo (100)
- 3
- 4
- 5
🇺🇸California, United States
Great fit on 168k km² (65k sq mi) · worth a try on 31k km² (12k sq mi) · mostly with irrigation
For example Redding (100), Cameron Park (100)
- 6
- 7
- 8
🇦🇺New South Wales, Australia
Great fit on 128k km² (49k sq mi) · worth a try on 16k km² (6,100 sq mi)
For example Hornsby (100), Muswellbrook (100)
- 9
- 10
🇦🇷Cordoba, Argentina
Great fit on 112k km² (43k sq mi) · worth a try on 11k km² (4,100 sq mi)
For example Córdoba (100), Río Cuarto (100)
- 11
🇪🇸Andalusia, Spain
Great fit on 98k km² (38k sq mi) · worth a try on 1,200 km² (500 sq mi)
For example Barbate (100), Conil de la Frontera (100)
- 12
- 13
- 14
- 15
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
- 🇺🇸United States2.4M km² (924k sq mi) · 43% of its land
- 🇨🇳China2.2M km² (849k sq mi) · 39% of its land
- 🇮🇷Iran846k km² (327k sq mi) · 61% of its land
- 🇦🇷Argentina693k km² (268k sq mi) · 44% of its land
- 🇩🇿Algeria441k km² (170k sq mi) · 75% of its land
- 🇿🇦South Africa349k km² (135k sq mi) · 41% of its land
- 🇦🇺Australia309k km² (119k sq mi) · 38% of its land
- 🇹🇷Turkey301k km² (116k sq mi) · 36% of its land
- 🇪🇸Spain300k km² (116k sq mi) · 53% of its land
- 🇲🇦Morocco261k km² (101k sq mi) · 63% of its land
Best-suited towns
- 100%fit
🇨🇳 Hubei, China
- 100%fit
🇨🇳 Sichuan, China
- 100%fit
🇹🇷 Hatay, Turkey
- 100%fit
🇺🇸 Texas, United States
- 100%fit
🇨🇳 Anhui, China
- 100%fit
🇨🇳 Jiangsu, China
- 100%fit
🇨🇳 Jiangsu, China
- 100%fit
🇨🇳 Sichuan, China
- 100%fit
🇨🇳 Shanghai, China
- 100%fit
🇨🇳 Shanghai, China
- 100%fit
🇨🇳 China
- 100%fit
🇨🇳 Hubei, China
The most comfortable fits among the 2,000 biggest towns, two per region.
What pecan needs
- Winter chill (9 winters in 10)
- Ideal at least 30 portionsWon't grow below 18 portions
- Coldest night of the year (average)
- Ideal at least 0°F (-18°C)Won't grow below -9°F (-23°C)
- Frost-free days
- Ideal at least 210 daysWon't grow below 180 days
- Degree days above 50°F (10°C)
- Ideal at least 4,320 °F·days (2,400 °C·days)Won't grow below 3,240 °F·days (1,800 °C·days)
- Yearly rain
- Ideal 30–59 in (750–1,500 mm)Won't grow below 18 in (450 mm) or above 98 in (2,500 mm)
Needs a long, hot season to fill the nuts.
Sources: Wells 2017, Pecan: America's Native Nut Tree (University of Alabama Press); FAO ECOCROP: Carya illinoinensis. Ranges not yet reviewed by an agronomist.
What stops it elsewhere
- Not enough winter chill66%
- Winters get too cold20%
- Frost-free season too short8%
- Not enough summer heat6%
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. Each square is scored with whichever variety fits it best. “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.