10+ Ways to lower Humidity in Grow Tent or Grow Room 

In this article, we will provide some of the best ways to lower Humidity in Grow Tent or Grow Room. As an indoor gardener, planting and gardening may or may not be a challenge, but there is a higher risk and problem in maintaining the humidity of the room atmosphere as everything regarding your crops depends on it.

Key takeaways:

  • For an indoor gardener, planting and gardening may or may not be a challenge, but there is a higher risk and problem in maintaining the humidity of the room atmosphere as everything regarding your crops depends on it.
  • The maintenance of perfect and optimal humidity is a major factor responsible for the quality and growth of your vegetation.
  • In case the humidity gets higher than required, it can lead to slow growth, mildew, fungal growth, bud rot, and mold.
  • On average, your growth tent should not exceed a humidity of over 70%. if you somehow cross this threshold limit, try finding out where the extra moisture is coming from.

People often do gardening as a passive activity while some are passionate about it. Gardening is a hobby that not only soothes the mind but also helps understand and connect with mother nature. The gardening activity includes various categories like outdoor and indoor, on a large scale or a small scale. The most common form of gardening is done under the sky, i.e., it is entirely outdoors. This includes shrubs, herbs, crawlers, vines, and even large trees. However, people who are interested in gardening but don’t own large spaces, prefer small-scale or indoor gardening. Indoor gardening includes planting small varieties in pots and growing and caring for them just like the Salpiglossis.

Ways to lower Humidity in Grow Tent or Grow Room

Now, let’s come to the point you are here in this article.

How Does Excessive Humidity Affect Plants? 

You might have learned from different people that plants love high humidity. No doubt that’s a fact. But when this already high humidity gets excessively high, it does no good to the plants, instead, it harms them and can hinder their growth. Most of them can be destroyed without you even knowing! You would surely not want to let that happen.

Here, read below about why more than enough humidity affects the plantation:

  • Humidity creates a perfect environment for molds and bacteria that can harm your plants.
  • The high amount of moisture in the air can block the pores of plants and prevent them from performing transpiration.
  • Moisture also welcomes pests and diseases.
  • Humidity slows down your plant’s nutrient intake.
  • If you have planted flowering plants, they would suffer from bud rot due to excess moisture.
  • All this would collectively minimize your plant yield.

According to the research, vegging plants need 50%-70% humidity because they can take up water from their roots. Flowering plants need 40%-50% humidity for a healthy environment to breathe.

Understanding the consequences of high humidity, you are also required to save your plants by understanding how you would maintain the low levels of humidity.

10+ Ways To Lower Humidity In Grow Tent Or Grow Room 

Here are some convenient ways to help you improve the humidity of your plantation environment.

Avoid overwatering your plants

Watering plants already increases the humidity of the air around the plant. You have more of these plants, which leads to an overall increase in the air moisture that would further start damaging the crop. Moreover, the soil would leave extra water in the water trays which would again lead to the humidity rise. 

To know more about the plant world, you may also read related articles, 5 Best Grow Tent Humidifiers in 2022 (& How to choose one?)

Check the density of your plant

Plants release carbon dioxide into the air which raises the air temperature in your grow tent. This leads to the building up of moisture. You can simply remove some of the plants out of your grow tent. If you can’t do that, simply remove those with bigger leaves. 

Make use of a dehumidifier in your grow tent

Buy it and install it inside your grow tent. When the moisture in the air gets excessive, the dehumidifier removes the extra humidity. Make sure your humidifier is connected to an outlet drain or it would rather increase the moisture. 

Don’t let water stagnate

You, as a responsible indoor grower, have to ensure that your grow tent has a proper drainage system for the flow of water which would disallow any remaining water to stagnate inside. If any water stands inside your tent, it would mix as a vapor and increase humidity. 

Ventilate your tent properly

Install small fans in your growth tent that would work as exhausts for any excess moisture and would also prevent extra water in the soil from standing in the water tray. 

Create air holes

Making holes inside your tent would again maintain the flow of air that would keep the atmosphere inside the growth tent healthy and fresh. To decrease humidity, try making wider holes to ensure more inlet of air inside the tent. 

Install an Air Conditioner

We already know that the air conditioner compresses the air and removes moisture from the air which ultimately lowers the humidity. All the extra water will be removed through the condenser inside the AC. 

Insulate and seal your tent

This method would prevent any external factors from altering the relative humidity of your grow tent. Try using foams for insulating your tent walls to create a thick border between the inside and the outside environment. 

Use absorbent soil

If you are an indoor planter, you must know about different types of soil. I would recommend using sandy soil that lowers the evaporation rate and does not let any water in the solid mix up in the atmosphere. 

Cut down extra leaves

Usually, plants with bigger leaves can cause increasing humidity. Try chopping off any excess and big leaves that would help maintain the moisture in the air.

Use grow tools wisely

Grow tools and equipment like grow lights also increase the temperature of the air around it which automatically increases the humidity in the air. Try turning off the grow lights if you feel your grow tent has become warm already. 

Concluding lines  

Growing plants indoors is not so challenging, but maintaining the crops you planted is comparatively difficult. Buying and installing is no big deal, maintenance is! Higher humidity is a concern for the planters and that is why we are here to provide you with the most effective solution regarding the same! This article was about ways to lower humidity in a tent or grow room.


What happens if you don’t control humidity in a grow tent?

It is always said to maintain humidity levels in your grow tent. If you don’t control it, then your grown plants won’t be able to survive for long. 

Does one need a ventilation system for the tent to grow?

Yes, it is needed to keep the ventilation system for the grow tent so that the plants grow at a faster pace. 

Becky Decker

Becky Decker, our esteemed Editor-in-Chief, is a passionate gardener with years of experience in the world of horticulture. With her guidance, BonjourGreen.com aims to be your trusted companion on your gardening journey. Featured In   Becky Decker’s expertise and gardening wisdom have been recognized and featured in various prominent publications, including:   Homesandgardens.com Yahoo.com Urbansplatter.com Inkl.com Foliagefriend.com Yahoonews  Experience & Background   Becky Decker’s love for gardening has been a lifelong journey. She has honed her skills through countless seasons of planting, nurturing, and harvesting a wide variety of plants, flowers, and vegetables. Her deep-rooted knowledge is complemented by her Bachelor’s degree in Horticulture from the University of Green Valley.   Prior to leading BonjourGreen.com, Becky worked as a garden consultant, helping countless individuals turn their outdoor spaces into vibrant, thriving gardens. Her experience spans over a decade, making her a trusted authority in the gardening community.   The Birth of BonjourGreen.com   Inspired by her passion for gardening and her desire to share her expertise with a wider audience, Becky Decker launched BonjourGreen.com in 2021. This platform serves as a hub for gardening enthusiasts of all levels, from beginners to seasoned pros.   At BonjourGreen.com, we are committed to providing you with comprehensive guides, expert advice, and hands-on tips to help you achieve success in your gardening endeavors. Whether you have a small balcony garden or a sprawling backyard paradise, we have the information you need to make your garden flourish.   Our Mission   BonjourGreen.com is more than just a gardening website; it’s a community of gardeners who share a common love for nurturing the Earth. Our mission is to empower you with the knowledge and resources to create beautiful, sustainable gardens that bring joy and tranquility to your life.   Join Us on This Green Journey   We invite you to explore BonjourGreen.com and embark on your gardening journey with us. Whether you’re seeking advice on planting techniques, pest control, landscaping ideas, or the latest gardening trends, you’ll find it all right here.   Connect with us, ask questions, and share your gardening stories. Together, we’ll cultivate a thriving community of gardeners and help each other make the world a greener, more beautiful place.   Let’s dig in and grow together at BonjourGreen.com, where gardening dreams bloom!

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