# US Grow Zones Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## US Grow Zones

Find your USDA hardiness zone, frost dates and vegetable planting calendar by ZIP code.

- Record: https://musedirectory.ai/connector/us-grow-zones
- Category: Lifestyle
- Developer: usgrowzones.com (https://usgrowzones.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 73ms, checked 2026-10-30T06:46:14Z
- Endpoint: https://usgrowzones.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-30T06:46:14Z)
- Source: Found in the official MCP Registry (com.usgrowzones/grow-zones) https://registry.modelcontextprotocol.io/v0/servers?search=com.usgrowzones%2Fgrow-zones

Connects to USDA and NOAA data to show your plant hardiness zone, average frost dates, growing season length, and when to plant specific vegetables in your area.

Example request: "When should I plant tomatoes in my garden this spring?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use US Grow Zones to help me. It is a free service with an MCP server at https://usgrowzones.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

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.

Screening checks:
- MCP handshake: pass (Answered in 73ms)
- Domain against threat feeds (Cloudflare security DNS): pass (usgrowzones.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (4 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 10 days ago)
- AI review of purpose and tool behavior: pass (No concerns)