When should microgreens be exposed to light? It is best to expose microgreens to light two to three days after sprouting is evident, or when they have grown to be about an inch-and-a-half tall. Allowing the microgreens to reach this height first will allow gardeners to harvest easily and yield more.

How many hours a day do microgreens need light?

Microgreens do best in full light, in a well-ventilated area. 12 to 14 hours per day is recommended for growing indoors with Bulbo lights.

Does Microgreen need sunlight?

Microgreens need about four hours daily of direct sunlight to thrive. In winter months, some may need even more. Leggy, pale greens are a sign of not enough sunlight.