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Calcimator

Crop Scheduling Calculator

Calculate planting dates by working backwards from target sale date through propagation, transplant, and finishing stages.

Inputs

weeks
weeks
weeks
days

Results

Total Crop Cycle

12 weeks

Sow Date (Day of Year)

37

Transplant Date (DOY)65
Finish Start (DOY)86
Batches Scheduled3
How to Use This Calculator
  1. Enter your target sale date as a day of the year (e.g., May 1 = day 121) to back-calculate all sowing dates.
  2. Enter propagation weeks (seed germination or cutting rooting), transplant/growing weeks, and finishing weeks.
  3. Enter the number of successive batches and the interval in days between batch sow dates.
  4. Review Total Crop Cycle (weeks) and the Sow Date (DOY) to know when to start your first seeds or cuttings.
  5. Use the Transplant Date and Finish Start Date outputs to schedule bench space and staffing.

How the result changes with Finishing Weeks

Finishing WeeksTotal Crop CycleSow Date (Day of Year)
2.99.9 weeks51.7
7.6514.65 weeks18.45
1320 weeks346
1825 weeks311

What each input means

Target Sale Day of Year
Day of year for sale (e.g., May 1 = 121).
Propagation Weeks
Weeks for seed germination or cutting rooting.
Transplant / Growing Weeks
Weeks in growing containers after transplant.
Finishing Weeks
Weeks to reach saleable size and bloom.
Number of Batches
Successive batches for extended availability.
Batch Interval
Days between successive batch sow dates.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Target Sale Day of Year = 121, Propagation Weeks = 4, Transplant / Growing Weeks = 3, Finishing Weeks = 5 = 6 input(s) provided
  2. Calculate Total Crop Cycle
    Total Crop Cycle
    12 = 12
  3. Calculate Sow Date
    37 = 37
  4. Calculate Transplant Date
    65 = 65
  5. Calculate Finish Start
    86 = 86

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