{
  "tick_sources": ["snow"],
  "growth_chance": 0,
  "target_self": true,
  "area_condition": {
    "must_have": {
      "block": "minecraft:air",
      "predicate_type": "minecraft:block_match"
    },
    "type": "neighbor_based_generation"
  },
  "growth_for_face": [
    {
      "direction": "up",
      "weight": 1,
      "growth": [
        {
          "data": {
            "block": {
              "Name": "immersive_weathering:frosty_fern",
              "Properties": {
                "natural": "true"
              }
            }
          },
          "weight": 1
        }
      ]
    }
  ],
  "owners": "minecraft:fern",
  "replacing_target": {
    "block": "minecraft:air",
    "predicate_type": "minecraft:block_match"
  }
}