The free garden toolkit
Planting date calculator
Translate weeks before or after a reference date into a calendar date.
Choose a valid reference date and an offset of 0–52 whole weeks.
Choose your reference date from local guidance and your offset from crop instructions. This calculator performs calendar arithmetic. It does not predict frost, check forecasts, or determine whether soil is warm enough. A hardiness zone is not a frost date.
Free to use. No account required. Your entries are processed in your browser and reset when you leave this page.
Keep your plan grounded.
Use the result as a starting point. Crop spacing, fill depth, sowing windows, and care needs depend on the crop and your conditions. University of Maryland Extension’s beginner guidance is a useful companion.
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