Garden Bed Turnover Planner

Compare crop occupancy and clearing periods across garden beds. Find free date windows long enough for your next planting and flag overlapping use.

Starts with an editable example. Replace the dates and rules with your own.

Your calculation

Inputs stay on this page unless you choose to save them.

Ready when you are

Choose your dates.

Select your counting rules and calculate.

How to use this calculator

Name your beds, enter crop start and last occupied dates, and allow full clearing dates afterward. Choose the minimum free window you want to find.

Crop endpoints both count. Clearing starts on the next date. The report counts conflicting bed-dates and clips free windows to the entered planning range.

A worked example

A crop occupying Bed A through November 8 with two clearing dates occupies November 9 and 10 for clearing. A following crop starting November 10 creates one conflict.

Does it choose which crop to plant next?

No. It finds calendar capacity. Crop rotation, climate, soil, spacing and suitability remain your decisions.

Which calendar and years are supported?

Use Gregorian dates from 1900 through 2100, with results in that range. Daily plans allow up to 366 dates; dark-sky searches allow 31 nights. Durations, capacities and policy rules are supplied by you. Astronomy uses the bundled Astronomy Engine, sea-level geometry and browser time-zone rules. Timed exports use UTC instants; date-only events do not assign a clock time. Copy, CSV and print include calculation assumptions. Nothing is booked or scheduled outside this page.

What happens to my dates?

Calculations run on your device. Saving a calculation is optional and keeps it in this browser. A setup link contains the dates and settings you entered; anyone with the link can read them. Use one tab per saved calculator. Clear saved data from Privacy & settings.