{
  "schema_version": 1,
  "record_type": "plant",
  "slug": "sweet-corn",
  "common_name": "Sweet corn",
  "botanical_name": "Zea mays convar. saccharata",
  "family": "Poaceae",
  "summary": "Sweet corn is a tall warm-season grass that needs full sun, rich soil and a compact block of plants for reliable wind pollination.",
  "categories": [
    "grain vegetable",
    "warm-season crop",
    "wind-pollinated crop"
  ],
  "growth_habits": [
    "upright"
  ],
  "lifecycle": "Annual",
  "difficulty": "Moderate",
  "requirements": {
    "light": {
      "minimum_direct_sun_hours": 6,
      "preferred_direct_sun_hours": 8
    },
    "soil_ph": {
      "minimum": 5.8,
      "maximum": 7.0
    },
    "container": {
      "minimum_volume_litres": 40,
      "minimum_diameter_cm": 45,
      "plants_per_container": 1
    },
    "spacing": {
      "minimum_cm": 25,
      "maximum_cm": 45
    },
    "planting_out": {
      "minimum_reliable_temperature_c": 12,
      "frost_tolerant": false,
      "note": "Wait until frost risk has passed and soil is warm."
    },
    "harvest": {
      "typical_uk_months": [
        "August",
        "October"
      ]
    }
  },
  "sources": [
    {
      "id": "rhs-growing-sweetcorn",
      "publisher": "Royal Horticultural Society",
      "url": "https://www.rhs.org.uk/vegetables/sweetcorn/grow-your-own",
      "supports": [
        "site",
        "sowing",
        "planting",
        "pollination",
        "care",
        "harvest"
      ]
    },
    {
      "id": "umn-crop-planning",
      "publisher": "University of Minnesota Extension",
      "url": "https://extension.umn.edu/vegetable-growing-guides-farmers/crop-and-field-planning-tools-vegetable-farmers",
      "supports": [
        "spacing",
        "season_length",
        "maturity",
        "harvest_window"
      ]
    }
  ]
}