Do You Need Humidity Domes When Planting Seeds In A Greenhouse

You may ask, do you need humidity domes when planting seeds in a greenhouse? Not necessarily, but if you want optimum results, you have to. Well, starting to grow plants on your own might be easy, but we can’t deny that there are so many things that you need to consider.

When you begin planting in a greenhouse, there are things that your plant needs to survive. Some examples are the soil, temperature, enough sunlight, and humidity.

Humidity Domes When Planting Seeds In A Greenhouse

We want to have better results; precisely, a high germination rate when planting seeds—having a humidity dome does this magic for you. In case you’re wondering if you need humidity domes when planting seeds in a greenhouse, then this is the right article.

Is There A Need To Have Humidity Domes?

So, the main question is, do you need humidity domes when planting seeds in a greenhouse?

Seeds will still germinate without having a humidity dome, but to achieve a more pleasant result, you’ll need one. The purpose of this item is for you to save so much time when you want to grow seeds in a faster way.

Usually, humidity domes are made from plastic and they are placed on top of a seed tray or container that holds your cultivation medium like soil; trapping moisture in the air below the cover is its primary goal.

After having enough moisture, this stimulates seed germination. Humidity domes also vary in size, shape, and form. Some come with adjustable vents that control the amount of humidity trapped.


Does Humidity Domes Need Holes?

The vents’ holes are often found at the top, side, or anywhere that you wish to. Proper humidity is the key to healthy, growing seeds.

Having a hole for humidity domes is not necessary. Vent holes are the ones responsible for high humidity.

Remember that anything too much can be harmful. It applies to high humidity and can result in the growth of mold in the soil.

Meanwhile, lack of humidity can make the soil dry and eventually weakens the germination rate, leading to the death of seeds.

Having vent holes is better when you start to plant seeds that take a more extended period to develop.


Are Lights Necessary For Humidity Domes?

The answer is no. Seeds sprout independently. Seeds can develop in dark areas and even sunken deep below the ground and still survive. Gravity is the one responsible that decides in what direction the seeds are going to grow.

However, the rules will have adjustments after the germination process finishes. The basic needs of a plant will apply, and seedlings will already need light to live.

Providing only low levels of light for seedlings will force itself to stretch. After a long time, this will become unpleasant because seedlings will become long-legged from continuous stretching to look for a light source.

To avoid having this outcome, transplant your seedlings in a well-lighted area. Slowly adjust the exposure to heat, amount of water, and the condition of humidity.

White LED lights can be a great option when developing seedlings indoors after the germination process.


When Is The Right Time To Take Off Humidity Domes?

When seeds turn into seedlings, then that is the right time to take off humidity domes. The transformation process depends on the plant, and some take a few days to a few weeks.

Leaving the humidity dome for an extended period will serve as an opportunity for fungi, mold, and other unfavorable situations to happen.

Planting similar types of plants is another way to develop them all together.


Making Humidity Domes When Planting Seeds In A Greenhouse

Sure, you can buy anytime you want, but if you’re going to have a customized and low-cost humidity dome, you can make your version.

Here is an easy tutorial on how to make your crowns using available recycled materials at home

An easy process is to find any available containers or pots and fill out the gaps with good soil. The seeds should be planted accordingly.

Pour enough water into the ground to make it moist but remember not to overwater.

Making the plastic wrap as the cover to the pot is a great choice. Tie the wrap with a rubber band. You can do this method effortlessly and still create a working dome for your beloved seeds.

Another way involves the use of a plastic bag and a moist paper towel. The cultivation medium will be the paper towel instead of soil. Place your seeds in the paper towel and gently wrap it around them.


Benefits Of Humidity Domes

Not only a humidity dome speeds up the germination rate of the seeds, but it also protects your seeds from pests; a blackout dome made from existing crowns where only certain seeds can develop.



Through plants, we get to eat healthy and nutritious food. Having a humidity dome is unnecessary, but through this, developing your seeds will become quicker, saving you much time.

Do you need humidity domes when planting seeds in a greenhouse? Well, you can buy crowns, but making your version keeps you from finances and what you desire will come true as you can customize it.

We hope that you learned many things from this article. Good luck and make the most out of every moment!

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