Microgreen Grow-Kit Instructions

The notes below provide further detail to the instruction sheet included in the kit.



Further Information



The trays are made in South India from the naturally fallen leaves of the Areca palm. The leaves are cleaned, soaked and pressed into shape before drying. We source the trays from start-up Greenovation out of London, ON. London. The trays are fully compostable, or simply place in your blue bin when done. Or dry and reuse.

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This is ProMix MP organic soil produced in Canada and sourced locally. It can also go in the blue bin when you’ve finished growing



A flat soil surface helps prevent seeds clumping together. Gentle compression of the soil gives a solid substrate for the plant roots to anchor themselves



Water is one of the two things to get right (the other is light). Too little water and the seeds won’t germinate; too much and you invite mold and seed rot. If you have a kitchen scale, measure the dry weight of the tray/lid/soil combo – it will be around 200g. The initial soil spray should add 40-60g. If without a scale spray 40-60ml of water onto the surface. Or simply spray until the soil is all black, not brown.

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Seeds must be sprinkled evenly across the surface to maximize the germination rate and to prevent clumping which invites mold. Gently spray a second time to wet the seeds, maybe another 20ml of water.



The lid keeps the seeds in darkness during the germination phase. They like darkness. Use the elastic band to keep the tray and lid held together. Air gets in, light does not.



Germination is faster in warmer temperatures. While room temperature is fine, a bit warmer encourages the seeds to germinate more quickly. Not too hot.



Daily spray until all the soil surface is black again. If weight measuring, the combo should be brought back to its dry weight plus around 50-100g (ml). Daily inspect for mold. Any early mold (if overwatered or too warm) can be banished with a spray of 3% hydrogen peroxide.



The seeds will germinate at different rates – not a problem. Note the white root hair on the young plants – this indicates healthy growth. Root hairs can be mistaken for mold. Mold, if it appears, is a larger expanse of white fibers extending over the soil, not just the roots

12 To Light After 4-7 days the emerging plants should be unboxed and with the lid under the tray placed in a bright or sunny location.


Light for Growth

A south facing window in winter is pretty much essential to provide the plants with enough light. Or use an artificial light source. The time to maturity is mostly determined by light levels (assuming watering is correct)



Daily additions of water, carefully around the edge of the tray, should bring the wet weight up to the 350g range. Edge watering prevents the young leaves from getting wet which can again attract mold and protects the delicate foliage.



Depending on the seeds, light and water, the microgreens should be ready for harvest after 2-3 weeks from germination. Harvest one small portion each day for several days. If you continue to maintain the tray it’s often possible to get a second harvest, although a smaller one.