Transplants needed
Propagation target · plants
Allowed range: 1 to 1000000
Seed Tray Planner
Allocate whole trays, cells and seed starting medium.
Open this toolPurchased tray capacity and the number of cells you plan to sow are not necessarily equal.
Enter the transplant target, expected losses and tray size. Check medium volume for the cells actually needed.
Inputs and controls
Expected usable cell share
Propagation target · %
Allowed range: 0.01 to 100
Cells per tray
Tray specification · cells
Allowed range: 1 to 10000
Seeds per filled cell
Tray specification · seeds
Allowed range: 1 to 100
Medium per cell
Tray specification · mL
Allowed range: 0.1 to 10000
How to use
- Enter transplants needed and expected usable cell share.
- Enter cells per tray, seeds per filled cell and medium per cell.
- Select Calculate result. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why use this tool
The split keeps unused purchased cells from inflating the seed starting medium estimate.
Before relying on the result
Fills only the cells needed for the expected target, not every purchased tray cell.
Tool limitations
Fills only the cells needed for the expected target, not every purchased tray cell.
Questions
Are all cells in the final tray filled?
Only the cells needed for the expected target are counted as filled. Spare capacity remains visible.
What should I check before using Seed Tray Planner?
Check Transplants needed, Expected usable cell share, Cells per tray and Seeds per filled cell. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-04T13:08:12+00:00. This profile describes the tool; use its page to run it.
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