(3 customer reviews)

Humidity Domes


Humidity Domes are designed to fit perfectly on top of Paperpot Germination Trays. 

The clear domes can help increase seed germination, increase plant growth and can be used for growing microgreens.

The thick plastic construction is designed to withstand the elements and give you many years of productive use.

SKU: HD01000 Categories: , ,


Our Humidity Domes are an optional component of the Paperpot system, fitting perfectly onto our Paperpot Germination Trays (sold separately) to create the optimum environment for seed germination.

Increase plant growth!

Humidity domes create the perfect might climate for seeds to germinate.   Humidity domes and heat mats can be combined to create the benefits of a germination chamber. 

If you have plants growing slower due to cold temperatures, then you can use the humidity domes to increase temperature and humidity at the tray surface.  This can be a useful strategy for farms with heated or unheated greenhouses.

Our domes are designed to last! 

We produce our domes using thick PET plastic to ensure that they can withstand high greenhouse temperatures and exposure to sunlight.  The domes are resistant to cracking and should give you many years of use.

Need less light?

Humidity Domes can be painted black to create blackout domes for microgreens.



  • Made in the USA
  • Outside dimensions – 24-3/4” x 12-1/2″ x 4-1/8″
  • Interior Dome Height – 3-7/8″
  • Fits all Paperpot Germination Trays currently on the market.  The dome is not designed to fit over a Solid Bottom tray.
  • Paperpot Germination Trays and Solid Bottom Trays are SOLD SEPARATELY.


Additional information

Weight 15 oz
Dimensions 24 × 12 × 12 in

10 Domes

3 reviews for Humidity Domes

  1. Nate

    Improved our germination rates dramatically. Great addition to Paperpot system.

  2. Sean McCracken

    When the germ is full, these domes are key. They allow us to germinate multiple trays with ease. They also give us good visibility of the seedlings as the pop!

  3. Patrick

    I had been reluctant to buy humidity domes that fit the paper pot trays, because I’m cheap.. but I’m super glad I did.
    I use a germination chamber to start all of our seeds, but some crops can take a long time to pop and you have to take them out to put them under lights when the first seeds emerge.
    The humidity domes help a lot with crops like spinach or onions that can take one or two weeks between the first and final seed emergence. Using the domes can make the difference between perfect germination and disappointing germination.
    The domes are not as sturdy as the paper pot trays themselves, but they seem like they should hold up great as long as you’re not abusing them. More sturdy than the standard 1020 humidity domes.
    Also, you probably know this if you’re buying humidity domes and not a starter kit or something, but paper pot is really great to do business with. Super quick shipping. Great customer service.

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