Observed arrival · 2026-10-13
Planting Date Finder
A ZIP-code lookup for USDA hardiness zones and NOAA frost-date probabilities, with planting windows where the page cites state extension guidance.
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●Pro
◎Niche
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⚑Risk
ƒJS
- For
- Gardeners planning by ZIP code
- Worth noticing
- The page lists 39,921 ZIP zones and 6,241 qualified stations; planting windows appear only where a state extension guide is cited.
Field notes
The lookup joins a PRISM ZIP table to the nearest qualified NOAA climate-normals station when a station can be matched. Its frost dates use 1991–2020 normals, and the page explains that they are probabilities rather than forecasts. A planting window appears only when a cited state extension guide supplies one; the homepage also links to separate fall-planting and seed-starting calculators.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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