Crop directory
Corn across all 50 states.
- Zea mays
- Row Crop
- Frost Sensitive
- 90–120 days to maturity
- Soil-temp ≥ 50°F
Corn (Zea mays) is a row crop crop with a frost sensitive frost profile. Across all 50 states, 40 have corn as a primary crop, 9 as secondary, 1 as limited, and 0 as trial-only.
Agronomy reference
Corn agronomy.
Soil-temp minimum
50°F
Soil-temp optimum
60–86°F
Days to maturity
90–120
Water (in/wk)
1–1.5"
Soil pH
6–6.8
Nitrogen demand
high
Growing-degree-day requirement: 2400 GDD (base 50°F) from planting to maturity.
Source: www.nrcs.usda.gov/conservation-basics/natural-resource-concerns/plants-animals/agronomic-crops
Primary in 40 states
Commercially significant or common.
- AlabamaZone 8aSpring · March 25–April 15
- ArizonaZone 8bSpring · March 15–April 5
- ArkansasZone 7bSpring · April 5–April 26
- ColoradoZone 5bSpring · May 10–May 31
- ConnecticutZone 6bSpring · April 25–May 16
- DelawareZone 7aSpring · April 15–May 6
- GeorgiaZone 8aSpring · March 25–April 15
- IdahoZone 5bSpring · May 15–June 5
- IllinoisZone 6aSpring · April 25–May 16
- IndianaZone 6aSpring · May 1–May 22
- IowaZone 5aSpring · May 5–May 26
- KansasZone 6aSpring · April 25–May 16
- KentuckyZone 6bSpring · April 20–May 11
- MaineZone 5aSpring · May 15–June 5
- MarylandZone 7aSpring · April 15–May 6
- MassachusettsZone 6aSpring · May 1–May 22
- MichiganZone 5bSpring · May 10–May 31
- MississippiZone 8aSpring · March 25–April 15
- MissouriZone 6bSpring · April 20–May 11
- NebraskaZone 5aSpring · May 5–May 26
- NevadaZone 7aSpring · April 25–May 16
- New HampshireZone 5bSpring · May 15–June 5
- New JerseyZone 7aSpring · April 20–May 11
- New MexicoZone 7aSpring · April 25–May 16
- New YorkZone 5bSpring · May 10–May 31
- North CarolinaZone 7bSpring · April 5–April 26
- OhioZone 6aSpring · May 1–May 22
- OklahomaZone 7aSpring · April 10–May 1
- OregonZone 8aSpring · April 20–May 11
- PennsylvaniaZone 6bSpring · April 25–May 16
- Rhode IslandZone 7aSpring · April 20–May 11
- South CarolinaZone 8aSpring · March 30–April 20
- TennesseeZone 7aSpring · April 10–May 1
- TexasZone 8bSpring · March 15–April 5
- UtahZone 6bSpring · May 1–May 22
- VermontZone 5aSpring · May 15–June 5
- VirginiaZone 7aSpring · April 15–May 6
- WashingtonZone 8aSpring · April 15–May 6
- West VirginiaZone 6bSpring · April 25–May 16
- WisconsinZone 5aSpring · May 10–May 31
Secondary in 9 states
Grown but not at scale; often gardens, food plots, cover.
- AlaskaZone 4aSpring · May 25–June 15
- CaliforniaZone 9aSpring · March 1–March 22
- FloridaZone 9bSpring · February 15–March 7
- LouisianaZone 9aSpring · March 5–March 26
- MinnesotaZone 4aSpring · May 15–June 5
- MontanaZone 4bSpring · May 20–June 10
- North DakotaZone 4aSpring · May 20–June 10
- South DakotaZone 4bSpring · May 15–June 5
- WyomingZone 4bSpring · May 25–June 15
Limited in 1 states
Marginal — only the warmest counties or season-extended setups.
Corn planting in your county.
Bield: Farm ties weather and soil-temperature stations in your county to corn planting thresholds — get notified when conditions clear your target.
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