US Grow Zones

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "us-grow-zones": {
      "type": "http",
      "url": "https://usgrowzones.com/mcp"
    }
  }
}

4 tools

• get_zone_by_zip

  Use this when the user asks what USDA plant hardiness zone (e.g. 7a) a U.S. ZIP code is in, or the average extreme winter low there. Returns the 2023 USDA zone, temperature range and a source link to cite.

• get_frost_dates

  Use this when the user asks for the average last spring frost, first fall frost, or growing season length for a U.S. ZIP code (or a city + state). Returns NOAA 1991-2020 frost dates (10/30/50% probability) and a source link to cite.

• get_planting_calendar

  Use this when the user asks when to start seeds indoors, transplant, direct sow or plant a fall crop for vegetables at a U.S. ZIP code. Optionally pass one crop; otherwise returns all supported crops. Includes a source link to cite.

• what_to_plant_now

  Use this when the user asks what vegetables they can plant or start now (or on a given date) at a U.S. ZIP code. Returns crops whose planting window is open, plus what opens in the next 30 days, and a source link to cite.

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