Observed arrival · 2026-11-03
SowClock’s frost-date planting calendar
A free, browser-based calendar that uses your town or frost dates to suggest when to sow, plant out, and harvest 30 vegetables and herbs.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Home gardeners planning vegetable and herb sowing
- Worth noticing
- Users can choose average or “careful” frost dates, with the latter described as roughly a one-in-ten chance of a later frost.
Field notes
Visitors can choose a country and town, adjust average spring and autumn frost dates, and optionally enter latitude for day-length information. The coverage list ranges from 3,048 U.S. towns and 945 German towns to smaller sets elsewhere; timing guidance is attributed to university extension services. The site says calculations happen in the browser and warns that frost-free or very hot climates fit this model poorly.
Observed signals
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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
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