{
  "asOf": "2026-09-11",
  "source": {
    "name": "USDA Plant Hardiness Zone Map",
    "url": "https://planthardiness.ars.usda.gov/"
  },
  "rows": [
    {
      "crop": "Tomato",
      "zone": "3",
      "zoneMinF": -40,
      "zoneMaxF": -30,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-3/"
    },
    {
      "crop": "Tomato",
      "zone": "4",
      "zoneMinF": -30,
      "zoneMaxF": -20,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-4/"
    },
    {
      "crop": "Tomato",
      "zone": "5",
      "zoneMinF": -20,
      "zoneMaxF": -10,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-5/"
    },
    {
      "crop": "Tomato",
      "zone": "6",
      "zoneMinF": -10,
      "zoneMaxF": 0,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-6/"
    },
    {
      "crop": "Tomato",
      "zone": "7",
      "zoneMinF": 0,
      "zoneMaxF": 10,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-7/"
    },
    {
      "crop": "Tomato",
      "zone": "8",
      "zoneMinF": 10,
      "zoneMaxF": 20,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-8/"
    },
    {
      "crop": "Tomato",
      "zone": "9",
      "zoneMinF": 20,
      "zoneMaxF": 30,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-9/"
    },
    {
      "crop": "Tomato",
      "zone": "10",
      "zoneMinF": 30,
      "zoneMaxF": 40,
      "preset": "Tomato thresholds",
      "minSoilF": 60,
      "minAirF": 50,
      "maxAirF": 90,
      "url": "https://plantingwindowplan.com/plant/tomato-zone-10/"
    },
    {
      "crop": "Lettuce",
      "zone": "3",
      "zoneMinF": -40,
      "zoneMaxF": -30,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-3/"
    },
    {
      "crop": "Lettuce",
      "zone": "4",
      "zoneMinF": -30,
      "zoneMaxF": -20,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-4/"
    },
    {
      "crop": "Lettuce",
      "zone": "5",
      "zoneMinF": -20,
      "zoneMaxF": -10,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-5/"
    },
    {
      "crop": "Lettuce",
      "zone": "6",
      "zoneMinF": -10,
      "zoneMaxF": 0,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-6/"
    },
    {
      "crop": "Lettuce",
      "zone": "7",
      "zoneMinF": 0,
      "zoneMaxF": 10,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-7/"
    },
    {
      "crop": "Lettuce",
      "zone": "8",
      "zoneMinF": 10,
      "zoneMaxF": 20,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-8/"
    },
    {
      "crop": "Lettuce",
      "zone": "9",
      "zoneMinF": 20,
      "zoneMaxF": 30,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-9/"
    },
    {
      "crop": "Lettuce",
      "zone": "10",
      "zoneMinF": 30,
      "zoneMaxF": 40,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/lettuce-zone-10/"
    },
    {
      "crop": "Pea",
      "zone": "3",
      "zoneMinF": -40,
      "zoneMaxF": -30,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-3/"
    },
    {
      "crop": "Pea",
      "zone": "4",
      "zoneMinF": -30,
      "zoneMaxF": -20,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-4/"
    },
    {
      "crop": "Pea",
      "zone": "5",
      "zoneMinF": -20,
      "zoneMaxF": -10,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-5/"
    },
    {
      "crop": "Pea",
      "zone": "6",
      "zoneMinF": -10,
      "zoneMaxF": 0,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-6/"
    },
    {
      "crop": "Pea",
      "zone": "7",
      "zoneMinF": 0,
      "zoneMaxF": 10,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-7/"
    },
    {
      "crop": "Pea",
      "zone": "8",
      "zoneMinF": 10,
      "zoneMaxF": 20,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-8/"
    },
    {
      "crop": "Pea",
      "zone": "9",
      "zoneMinF": 20,
      "zoneMaxF": 30,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-9/"
    },
    {
      "crop": "Pea",
      "zone": "10",
      "zoneMinF": 30,
      "zoneMaxF": 40,
      "preset": "Cool-season scenario",
      "minSoilF": 45,
      "minAirF": 35,
      "maxAirF": 75,
      "url": "https://plantingwindowplan.com/plant/pea-zone-10/"
    }
  ]
}