Those Extra-Strength Humidity Domes you love are now available for blackout application. These blackout domes for 1020 trays help regulate your seedlings' growing conditions and help cut down on watering. Maximize germination while providing your seedlings with the proper blackout period with our heavy-duty blackout domes.
What's the function of a blackout dome? Why does this product exist, I'm curious the role it plays in starting seeds.
Its primarly used for things like microgreens that need a light deprivation period to germinate well. Some microgreen require it for the entire growing period.