USDA Hardiness Zone API

Overview

To use USDA Hardiness Zone, you need an API key. You can get one by creating a free account and visiting your dashboard.

GET Endpoint

https://api.apiverve.com/v1/hardinesszone

Example

How to call the USDA Hardiness Zone API in different programming languages.

curl -X GET \
  "https://api.apiverve.com/v1/hardinesszone?zip=97201" \
  -H "X-API-Key: your_api_key_here"

const response = await fetch('https://api.apiverve.com/v1/hardinesszone?zip=97201', {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log(data);

import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

response = requests.get('https://api.apiverve.com/v1/hardinesszone?zip=97201', headers=headers)

data = response.json()
print(data)

package main

import (
    "fmt"
    "io"
    "net/http"

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/hardinesszone?zip=97201", nil)

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

{
  "status": "ok",
  "error": null,
  "data": {
    "zipCode": "97201",
    "zone": "8b",
    "tempRange": "15 to 20",
    "zoneTitle": "8b: 15 to 20",
    "details": {
      "tempRange": "15°F to 20°F (-9°C to -7°C)",
      "description": "Mild and relatively warm, found in parts of southern U.S. like the Gulf Coast and parts of Texas.",
      "plantSurvival": "A wide range of plants, including many Mediterranean and subtropical varieties."
    }
  }
}

Authentication

The USDA Hardiness Zone API requires authentication via API key. Include your API key in the request header:

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the USDA Hardiness Zone API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the USDA Hardiness Zone API:

Response

The USDA Hardiness Zone API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <zipCode>97201</zipCode>
    <zone>8b</zone>
    <tempRange>15 to 20</tempRange>
    <zoneTitle>8b: 15 to 20</zoneTitle>
    <details>
      <tempRange>15°F to 20°F (-9°C to -7°C)</tempRange>
      <description>Mild and relatively warm, found in parts of southern U.S. like the Gulf Coast and parts of Texas.</description>
      <plantSurvival>A wide range of plants, including many Mediterranean and subtropical varieties.</plantSurvival>
    </details>
  </data>
</response>

status: ok
error: null
data:
  zipCode: '97201'
  zone: 8b
  tempRange: 15 to 20
  zoneTitle: '8b: 15 to 20'
  details:
    tempRange: 15°F to 20°F (-9°C to -7°C)
    description: >-
      Mild and relatively warm, found in parts of southern U.S. like the Gulf
      Coast and parts of Texas.
    plantSurvival: >-
      A wide range of plants, including many Mediterranean and subtropical
      varieties.

Response Structure

All API responses follow a consistent structure with the following fields:

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access USDA Hardiness Zone through GraphQL to combine it with other API calls in a single request. Query only the usda hardiness zone data you need with precise field selection, and orchestrate complex data fetching workflows.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

POST https://api.apiverve.com/v1/graphql

query {
  hardinesszone(
    input: {
      zip: "97201"
    }
  ) {
    zipCode
    zone
    tempRange
    zoneTitle
    details {
      tempRange
      description
      plantSurvival
    }
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The USDA Hardiness Zone API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

USDA Hardiness Zone requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The USDA Hardiness Zone API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for USDA Hardiness Zone

Official USDA Hardiness Zone packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

USDA Hardiness Zone works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

Frequently Asked Questions

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