{
  "schema_version": 1,
  "record_type": "plant",
  "slug": "cabbage",
  "common_name": "Cabbage",
  "botanical_name": "Brassica oleracea var. capitata",
  "family": "Brassicaceae",
  "summary": "Cabbage is a cool-season leafy brassica whose variety, spacing and sowing date determine head size and harvest season.",
  "categories": [
    "leaf vegetable",
    "brassica",
    "cool-season crop"
  ],
  "growth_habits": [
    "heading"
  ],
  "lifecycle": "Biennial usually grown as an annual",
  "difficulty": "Moderate",
  "requirements": {
    "light": {
      "minimum_direct_sun_hours": 6,
      "preferred_direct_sun_hours": 8
    },
    "soil_ph": {
      "minimum": 6.0,
      "maximum": 7.0
    },
    "container": {
      "minimum_volume_litres": 25,
      "minimum_diameter_cm": 30,
      "plants_per_container": 1
    },
    "spacing": {
      "minimum_cm": 30,
      "maximum_cm": 60
    },
    "planting_out": {
      "minimum_reliable_temperature_c": 5,
      "frost_tolerant": true,
      "note": "Established plants are hardy, but harden young transplants before exposure."
    },
    "harvest": {
      "typical_uk_months": [
        "January",
        "December"
      ]
    }
  },
  "sources": [
    {
      "id": "rhs-growing-cabbage",
      "publisher": "Royal Horticultural Society",
      "url": "https://www.rhs.org.uk/vegetables/cabbages/grow-your-own",
      "supports": [
        "types",
        "site",
        "sowing",
        "containers",
        "care",
        "harvest"
      ]
    },
    {
      "id": "umn-growing-cabbage",
      "publisher": "University of Minnesota Extension",
      "url": "https://extension.umn.edu/vegetables/growing-cabbage",
      "supports": [
        "soil_ph",
        "rotation",
        "spacing",
        "watering",
        "harvest",
        "storage"
      ]
    }
  ]
}