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Seeding Microgreens

Part 2 of 4: A guide on growing microgreens in your Flex Micro

Materials Needed (Included in the Microgreen Starter Supply Box)

  • 1 Perforated Microgreen Tray (per flat)
  • 1 Microgreen Grow Mat (per flat)
  • 1 Humidity Dome (per flat)
  • Spray Bottle (filled with water)
  • Seed Shaker
  • Microgreen Seeds of Choice (sold separately)
  • Food Scale (not included)
  • Clean Cloth (not included)

Prepare the Tray

 

Always follow proper food safety protocols by thoroughly washing your hands with soap and water before handling any growing equipment or materials.

  • Start by spraying and wiping down your perforated microgreen tray with a food-safe cleaner.

Cleaning your perforated microgreen tray can be done immediately after harvesting as well. We recommend using 3% hydrogen peroxide or hypochlorous acid as your cleaning solution. 

  • Set a grow mat in your perforated microgreen tray and spray the grow mat thoroughly and evenly with water.

Seed the Tray

  • Place the seed shaker on your food scale and reset (tare) the scale to zero. Weigh the desired amount of microgreen seeds, referencing the Microgreen Yield Trial Chart for accuracy.
  • Attach a lid to the shaker that has holes just larger than the size of your seeds.
  • Evenly distribute the seeds across the damp grow mat by gently shaking the seed shaker.
  • Spray your seeds evenly with water until well moistened.
  • Cover your seeded microgreen tray with a humidity dome.
  • Immediately place the seeded covered microgreen tray in an open slot in your Flex Micro.

If there is a non-perforated tray in the slot, remove it before placing your covered microgreen tray in the open slot. This ensures your microgreen seeds receive proper irrigation. Non-perforated trays serve as placeholders to keep the water system fully contained in unused slots.

  • Ensure your Flex Micro is properly set up, and now the seeds are ready for hand-free germination!

Place all germinating microgreen trays together on a single tier so you can keep the lights off—seeds do not require light to germinate. Typically, you’ll use one tier of your Flex Micro (with lights off) for germination, while the remaining two tiers (with lights on) support microgreen growth.

  • With automated watering and the humidity dome in place, your seeds will typically germinate within 2–7 days, depending on the variety.

Your microgreen seeds are now beginning to germinate—well done! Continue to Part 3 of 4: Germinating & Transplanting Microgreens for next steps.