Microgreens Tray Planner — What to Seed, Rack Space and the Best Crop Mix

How many trays should you seed, and of what?

Enter your crops, days to harvest, yield, price, seed cost, your harvest days and your rack size. You get a seeding calendar that lands each cut on your harvest day, the rack spaces your busiest weekday needs, the profit per rack space each crop earns, and the best mix when the rack is the limit.

Your numbers, not advice. Prices, yields and times are yours to check; every value is editable and the defaults are invented. Nothing is uploaded: inputs are used in this browser tab only.

Your crops

Crop	Days to harvest	Oz per tray	Price per oz ($)	Seed per tray ($)	Trays per week	Most you can sell (trays)

Your week

Harvest and delivery days: Sun Mon Tue Wed Thu Fri Sat

Rack spaces (trays under lights) Loss: failed, spoiled, unsold (%) Media per tray ($) Packaging per oz sold ($) Minutes of work per tray Your wage per hour ($) Fixed cost per week ($)

Your week

Line	Per week

What each crop earns for the rack space it uses

Crop	Margin per tray	Days on rack	Margin per tray per day	Margin after your wage, per tray	Your trays	Best-mix trays

Seeding calendar

Seed on	Crop	Trays	Cut on	Days

Trays on the rack, by weekday

Weekday	Trays on rack	Rack spaces left

A tray holds a space from the day it is seeded until the morning it is cut. Time one real week, weigh your trays and count your losses before you trust the numbers.

What's recognised

Input	Handling

More: How many microgreen trays per week: rack space, days to harvest and the crop mix.

Common questions

How many microgreen trays do I need to seed each week?

It depends on what you can sell and how long each crop sits on the rack. On the default numbers a plan of 55 trays a week (20 radish, 10 pea shoots, 15 sunflower and 10 broccoli) sells about $881.36 a week, but on the busiest weekday it holds 83 trays at once, so it needs 83 rack spaces. Enter your own crops, sales and rack size; the defaults are invented.

Which microgreen crop earns the most for the rack space it uses?

Not the one with the highest price per ounce. Margin per tray divided by days on the rack is what a rack space earns: on the defaults Pea shoots earns $1.59 per tray per day and Broccoli $1.09, even though Broccoli sells for the highest price per ounce.

What if I have fewer rack spaces than my orders need?

Fill the rack with the best-earning crops first, up to what you can sell. With a 40-tray rack the best fitting mix on the defaults is 10, 16, 0, 0 trays of radish, pea shoots, sunflower and broccoli and makes about $286.47 a week; the same plan on an 80-tray rack made $612.81.

Is this advice or market data?

No. It does arithmetic on the numbers you type. Prices, yields, days and costs are yours to check, nothing is uploaded, and it is not financial, tax, legal or food-safety advice. Check your local cottage-food, produce-safety and licensing rules before selling.