Terms of Use & Disclaimer
Last updated: 2026-07-07
Use PlantZoneFinder at your own risk: every frost date, zone, growing-season length, and planting window is a planning estimate computed from public NOAA and USDA data, not a guarantee. Weather varies year to year and microclimates differ block to block; verify anything critical against local conditions and your own observations. Values are provided “as is” without warranty of accuracy or fitness for a particular purpose. Questions: [email protected].
Nature of the information
Educational reference and garden-planning estimates only — not professional horticultural, agricultural, or agronomic advice. Frost dates, hardiness zones, growing-season lengths, and planting windows are averages and approximations; real weather varies year to year, and microclimates differ from block to block.
Accuracy and warranty
Provided "as is," without warranty of any kind. We aim for accuracy and trace every value to a cited public source — NOAA Climate Normals, the USDA Plant Hardiness Zone Map 2023, and U.S. Cooperative Extension guides — but do not guarantee it is error-free, current, or fit for a particular purpose. A single season can freeze weeks earlier or later than the 30-year average shown here. Verify anything critical against local conditions and your own observations before relying on it.
Data attribution
Underlying climate and geographic data are from NOAA's U.S. Climate Normals and the U.S. Census Bureau, which are public-domain U.S. Government works, and the USDA Plant Hardiness Zone Map. Per-crop timing is a cited synthesis of U.S. Cooperative Extension planting guides. This site's original text, layout, computed planting calendars, and code are not public domain.
Acceptable use and external links
Personal and educational reference use is welcome; do not scrape the site to overload it or misrepresent it as an official NOAA or USDA publication. External links are provided for convenience and are not endorsements. Contact: [email protected].
Questions about this page? Email [email protected].