A Seed Starting Spreadsheet Alternative
Spreadsheets are good at listing batches. They become harder to maintain when dates move, footprints change, and several resources overlap. A capacity planner makes those consequences visible.
Try your own numbers
4 container groups · 4 standard tray spaces
Check the whole seasonWhat to bring from your spreadsheet
Bring each batch name, final quantity, extra-seedling buffer, earliest and latest sow dates, target transplant date, and stage lengths. Keep your existing file as a reference. Use a complete JSON plan export or the Editable batches CSV export. Arbitrary spreadsheet layouts are not automatically interpreted.
What becomes automatic
The planner rounds plant quantities up into whole container groups, carries those footprints through consecutive stages, and checks each resource every day. Weekly charts show the busiest real day, so a shelf is not incorrectly counted as occupied by two stages that happen on different days.
Keep an exit route
A CSV schedule is useful for labels or another spreadsheet. A JSON export retains the complete editable plan, including resource and container details. Schedule CSV is a readable output report. Editable batches CSV also preserves equipment setup; JSON remains the simplest complete plan backup. Save the JSON export outside your browser before clearing local data.
Worked example
If two batches use a shelf on Monday–Wednesday and Thursday–Sunday, the daily model keeps them separate. A weekly SUM formula can incorrectly add both full footprints.
These calculations describe space and time, not guaranteed plant performance. Use your actual equipment and crop-specific growing guidance.
Related tools
- How Many Seed Trays Do I Need?
- How Many Seedlings Fit Under a 4-Foot Grow Light?
- Seed Tray Size and Capacity Guide